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Jungle Formula Plug In Refill

Jungle Formula Plug In Refill

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  • ✔️ Repels and kills mosquitoes indoors overnight using prallethrin vapour
  • ✔️ Each refill lasts up to 45 nights at 8 hours per night
  • ✔️ No skin application needed — passive room protection while you sleep
  • ✔️ Compatible with Jungle Formula electric plug-in vaporiser units
  • ✔️ Ideal for bedrooms during summer or travel in mosquito-prone areas

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What Is an Insect Repellent Plug In Refill?

 

If you've ever been kept awake by the whine of a mosquito circling your bedroom, you'll know how disruptive biting insects can be. The Jungle Formula Plug In Refill is a replacement vaporiser refill designed to work with compatible Jungle Formula electric plug-in units, releasing an insect-repelling vapour throughout the night. At just £6.99, it's a straightforward, fuss-free way to protect your indoor space. Whether you're at home in the UK during warmer months or preparing for a trip abroad, having reliable indoor protection matters — and this refill slots neatly into your existing device without any mess or spray. If you're also planning travel, you might find our travel health range useful for broader protection on the go.

The insect repellent plug in refill format is particularly popular because it requires no topical application — you simply plug it in and let it work while you sleep. It's a passive, hands-off approach to mosquito control that many people find far more convenient than applying creams or sprays to skin every evening.

 

How Does the Jungle Formula Plug In Refill Work?

 

The active ingredient in this refill is prallethrin, a synthetic pyrethroid compound. Pyrethroids are synthetic versions of pyrethrins, which occur naturally in chrysanthemum flowers. When the electric vaporiser heats the liquid in the refill bottle, prallethrin is released as a fine vapour into the surrounding air. This vapour acts on the nervous systems of mosquitoes and other flying insects, disrupting their normal function and deterring them from the treated space.

  • The device heats the refill liquid to produce a continuous insecticidal vapour.
  • Prallethrin interferes with insect nerve channels, causing paralysis or death in mosquitoes.
  • The vapour disperses throughout the room, creating a protective zone while you sleep.
  • One refill provides up to approximately 45 nights of protection at 8 hours per night.

 

Who Should Use the Jungle Formula Plug In Refill?

 

This product is suited to anyone who wants indoor protection from mosquitoes and flying insects without applying anything directly to their skin. It's particularly useful during summer months in the UK, when warmer temperatures bring increased insect activity, or when travelling to regions where mosquitoes are more prevalent.

  • Adults seeking overnight indoor mosquito protection.
  • Households in areas with high seasonal insect activity.
  • Travellers using it in hotel rooms or holiday accommodation.
  • Those who prefer a non-topical alternative to sprays and lotions.

It is not intended for use as a replacement for topical repellents in outdoor settings or in areas where mosquito-borne diseases are a significant risk — in those cases, additional protective measures are recommended.

 

How Does the Jungle Formula Plug In Refill Compare to Topical Repellents?

 

Feature Jungle Formula Plug In Refill Topical DEET Spray
Application method Electric vaporiser (plug-in) Applied directly to skin
Use setting Indoors only Indoors and outdoors
Duration per use Up to 8 hours per night / 45 nights per refill Varies by concentration (2–8 hours)
Suitable for skin contact No — ambient vapour only Yes — designed for skin

 

How Should You Store the Jungle Formula Plug In Refill?

 

Store the refill upright, below 25°C, and away from direct sunlight, open flames, or heat sources. The liquid is flammable, so keep it well away from any ignition sources. Once inserted into the device, do not attempt to refill or tamper with the bottle. Keep all components out of reach of children and pets at all times.

If you're looking for other products to support your health during travel or summer months — such as first aid essentials for insect bites and minor skin reactions — Cured Pharmacy stocks a wide range of relevant products.

This product is a medicine. Speak to your doctor or pharmacist before using if you have an underlying medical condition or are taking other medicines.

Jungle Formula Plug In Refill specifications
Treatment category Insect repellent / Insecticide
Mechanism of action Synthetic pyrethroid vapour — disrupts insect nervous system
Effective against Mosquitoes and flying insects (indoor use)
Suitable for Adults; consult pharmacist before use around children or pets
Active ingredient Prallethrin
Pack size Single refill bottle
UK classification General Sale / Biocidal product
Drug class Synthetic pyrethroid insecticide
Preparation Liquid vaporiser refill
Route of administration Ambient inhalation (vapour dispersed into room air)

Specifications of Jungle Formula Plug In Refill

 

What Is the Jungle Formula Plug In Refill and What Is It Used For?

 

The Jungle Formula Plug In Refill is a liquid vaporiser refill designed for use with compatible Jungle Formula electric plug-in devices. It contains prallethrin, a synthetic pyrethroid insecticide, which is released as a vapour when the device is heated. The vapour fills the room and acts as an effective deterrent against mosquitoes and other flying insects indoors. It is intended for use during the night or any period when you want passive indoor insect protection — particularly useful during warmer months or when staying in areas with higher mosquito activity.

This is not a topical product and should never be applied to skin. It works solely as an ambient room treatment. Think of it as a quiet, continuous barrier between you and biting insects while you sleep.

 

What Do You Need to Know Before Using the Jungle Formula Plug In Refill?

 

Before using this product, read the following contraindications and warnings carefully:

  • Do not use in completely sealed, unventilated rooms — always ensure some air circulation.
  • Not suitable for use around fish tanks or aquatic animals, as pyrethroids are highly toxic to aquatic life.
  • Keep out of reach of children and pets at all times.
  • Do not use if you have a known sensitivity or allergy to pyrethrins or synthetic pyrethroids.
  • People with asthma, chronic obstructive pulmonary disease (COPD), or other respiratory conditions should consult a GP or pharmacist before use.
  • Pregnant or breastfeeding women should seek medical advice before using any insecticidal vaporiser product.
  • Do not use near open flames, pilot lights, or other ignition sources — the liquid is flammable.

Regarding drug interactions, no significant pharmacological drug interactions have been identified for ambient pyrethroid vaporisers used as directed. However:

  • If you are using other insecticidal products simultaneously, avoid combining them without professional advice.
  • Those with known chemical sensitivities should exercise caution.

 

How Should You Use the Jungle Formula Plug In Refill?

 

Using this refill correctly ensures both safety and effectiveness. Follow these steps each time you replace or insert a refill:

  1. Ensure the electric plug-in device is switched off and unplugged before handling the refill.
  2. Remove the cap from the refill bottle carefully, keeping the bottle upright to avoid spillage.
  3. Insert the refill bottle firmly into the base of the compatible Jungle Formula electric vaporiser unit.
  4. Plug the device into a standard UK mains socket (230V), ideally at a low height to allow vapour to rise and disperse.
  5. Switch the device on. A small indicator light (if present on your unit) will confirm it is operating.
  6. Leave the device running for the required period — typically overnight (approximately 8 hours).
  7. Switch off and unplug the device when not in use for extended periods.
Indication Age Group Usage Frequency
Indoor mosquito protection Adults One refill per device Nightly, up to 8 hours per session
Indoor mosquito protection Children (consult pharmacist) Use with caution; ensure ventilation As directed by pharmacist or GP

 

What Are the Possible Side Effects of the Jungle Formula Plug In Refill?

 

Like all insecticidal products, this refill may cause side effects in some individuals, particularly those with sensitivities to pyrethroids. Most reactions are mild and resolve when the device is switched off and the room is ventilated. If you experience any severe or persistent symptoms, stop use immediately and seek medical advice.

Common side effects:

  • Mild throat or nasal irritation
  • Watery eyes or mild eye irritation
  • Headache in poorly ventilated rooms
  • Mild coughing

Less common side effects:

  • Skin irritation if the liquid comes into direct contact with skin
  • Dizziness or nausea in enclosed spaces with prolonged exposure
  • Worsening of pre-existing respiratory symptoms (e.g. asthma)

If you accidentally get the liquid on your skin, wash the area thoroughly with soap and water. If it contacts your eyes, rinse immediately with clean water for at least 15 minutes and seek medical attention. You can find additional support for minor skin reactions in our skin care range.

 

How Should You Store the Jungle Formula Plug In Refill?

 

  • Store upright at room temperature, below 25°C.
  • Keep away from direct sunlight, radiators, and other heat sources.
  • Store away from open flames, pilot lights, and ignition sources — the contents are flammable.
  • Keep in original packaging until ready to use.
  • Store out of sight and reach of children and pets.
  • Do not store in a bathroom or any area with high humidity.
  • Dispose of empty refill bottles responsibly in accordance with local waste regulations — do not puncture or incinerate.

For those managing insect bite reactions or related skin concerns, our allergy and hay fever collection includes antihistamines and topical treatments that may help with bite-related itching and inflammation.

Written and reviewed by our qualified team

Your safety and success are our highest priorities. Our medical team rigorously evaluates every product and piece of advice we provide, ensuring you receive only the most effective, science-backed solutions available.

Frequently Asked Questions

Where can I buy Jungle Formula Plug In Refill online in the UK?

You can order the Jungle Formula Plug In Refill directly from Cured Pharmacy online for £6.99 with fast UK delivery. It is available without a prescription as an over-the-counter product. No GP visit is required — simply add it to your basket and check out.

How does the Jungle Formula Plug In Refill work indoors?

The refill contains prallethrin, a synthetic pyrethroid that is released as a vapour when the electric device heats the liquid. This vapour disperses through the room and disrupts the nervous systems of mosquitoes and other flying insects. The result is a treated indoor environment that deters and kills insects while you sleep.

How do I use the Jungle Formula Plug In Refill step by step?

Unplug the device before inserting the refill, then remove the bottle cap and insert it firmly into the vaporiser unit. Plug the device into a mains socket at a low height, switch it on, and allow it to run for up to 8 hours. Switch off and unplug when not in use for extended periods.

How long does one Jungle Formula Plug In Refill last?

Each refill is designed to last up to approximately 45 nights when used for around 8 hours per night. Actual duration may vary slightly depending on room temperature and how well ventilated the space is. Higher temperatures can cause the liquid to evaporate more quickly.

Is the Jungle Formula Plug In Refill safe to use around children?

The product should be kept physically out of reach of children at all times, and the room should be adequately ventilated when in use. If you are considering using it in a room where young children sleep, consult your pharmacist or GP first. Extra caution is advised for infants and toddlers — you can also browse our baby and toddler range for age-appropriate alternatives.

Can I use the Jungle Formula Plug In Refill if I have asthma?

If you have asthma or any other respiratory condition, you should speak to your GP or pharmacist before using any insecticidal vaporiser product. The vapour may potentially irritate sensitive airways, particularly in poorly ventilated rooms. Always ensure adequate ventilation if you do use it.

What insects does the Jungle Formula Plug In Refill repel?

The product is primarily formulated to repel and kill mosquitoes in indoor environments. It may also have some effect on other small flying insects present in the room. It is not designed for use against crawling insects such as ants or cockroaches.

Is the Jungle Formula Plug In Refill safe to use around pets?

Pyrethroids are known to be toxic to cats, fish, and other aquatic animals, so you should never use this product in a room where cats sleep or near fish tanks. Dogs may tolerate low-level exposure better, but it is still advisable to keep pets out of the treated room during use. Always consult a vet if you are unsure.

What are the alternatives to the Jungle Formula Plug In Refill?

Alternatives include DEET-based topical sprays, picaridin-based lotions, and other electric vaporiser brands using different active ingredients such as transfluthrin. For outdoor protection, topical repellents are generally more appropriate than plug-in devices. Your pharmacist can help you choose the right option for your situation.

Can I use the Jungle Formula Plug In Refill during pregnancy?

Pregnant women should seek advice from their GP or midwife before using any insecticidal vaporiser product. While topical DEET-based repellents are considered acceptable in pregnancy at appropriate concentrations according to NHS guidance, the safety data for ambient pyrethroid vaporisers in pregnancy is less well established. Always err on the side of caution and get professional advice.

Does the Jungle Formula Plug In Refill work against mosquitoes that carry malaria?

This product can help reduce indoor mosquito exposure, but it should not be relied upon as the sole protective measure in malaria-endemic regions. The NHS recommends a combination of approaches including antimalarial medication, bed nets, and topical repellents for travel to high-risk areas. Speak to a travel health professional well before your trip.

How many rooms can one Jungle Formula Plug In Refill cover?

One refill is designed to treat a single room — typically a standard bedroom. For larger spaces or open-plan areas, you may need more than one device and refill. Closing doors and windows (while maintaining some ventilation) helps the vapour concentrate more effectively.

What should I do if I accidentally spill the Jungle Formula Plug In Refill liquid?

If the liquid contacts your skin, wash the area immediately and thoroughly with soap and water. If it gets into your eyes, rinse with clean running water for at least 15 minutes and seek medical attention. Ventilate the area well and avoid inhaling any concentrated vapour from a spill.

How long can you keep using the Jungle Formula Plug In Refill?

You can continue using the device with replacement refills for as long as indoor insect protection is needed — for example, throughout the summer months or during travel. There is no defined maximum duration of use, but always follow the product instructions and replace refills as directed. If you notice any adverse effects, discontinue use and consult a pharmacist.

What are the latest findings on pyrethroid-based indoor insect repellents?

Pyrethroid-based vaporisers remain widely used and are considered effective for indoor mosquito control when used as directed. Regulatory bodies including the UK Health and Safety Executive (HSE) oversee biocidal products to ensure they meet safety standards. Always use products that are registered and approved for use in the UK, and follow label instructions carefully. You can also explore our travel health collection for additional insect protection options.

How Should You Use the Jungle Formula Plug In Refill?

Using the Jungle Formula Plug In Refill correctly is straightforward, but it's important to follow each step carefully to ensure both safety and effectiveness. Always read the product label before use and make sure you have a compatible Jungle Formula electric vaporiser unit.

What Is the Correct Dose of the Jungle Formula Plug In Refill?

This is not a medicine taken by mouth, so there is no traditional "dose" in the conventional sense. Instead, usage is measured by the duration and frequency of device operation. One refill bottle is intended for use in a single room per session.

When Is the Best Time to Use the Jungle Formula Plug In Refill?

The most effective time to use this product is overnight, when mosquitoes are most active and when you are stationary and unable to apply topical repellents repeatedly. Switch the device on approximately 15–30 minutes before you go to bed to allow the vapour to build up in the room. This gives the prallethrin time to disperse fully before you settle down to sleep.

You can also use it during daytime naps or any period when you want passive indoor protection without applying anything to your skin. It is particularly useful in the evening during summer months when windows and doors may be open and insects are more likely to enter.

How Long Can You Use the Jungle Formula Plug In Refill For?

Each refill provides up to approximately 45 nights of protection at 8 hours per night. Once the liquid is exhausted, simply replace the refill with a new one — the electric device itself is reusable. There is no defined maximum period for using the device seasonally, and many people use it throughout the warmer months each year.

If you notice any adverse effects such as persistent respiratory irritation or headaches, discontinue use and consult your pharmacist. Do not exceed the recommended dose. If in doubt, speak to your pharmacist.

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What Are the Most Common Side Effects of the Jungle Formula Plug In Refill?

Most people use this product without experiencing any significant side effects, particularly when the room is adequately ventilated. However, some individuals — especially those with pre-existing sensitivities — may notice mild reactions. These typically resolve quickly once the device is switched off and the room is aired.

  • Mild nasal or throat irritation
  • Watery or mildly irritated eyes
  • Headache, particularly in poorly ventilated rooms
  • Mild coughing or sneezing

What Are the Less Common Side Effects of the Jungle Formula Plug In Refill?

Less commonly, some users may experience more noticeable reactions, particularly if the product is used in a very small or enclosed space without adequate airflow. These effects are generally mild and reversible.

  • Dizziness or light-headedness with prolonged exposure in a confined space
  • Nausea in poorly ventilated environments
  • Skin irritation or redness if the liquid comes into direct contact with skin
  • Worsening of pre-existing respiratory symptoms such as asthma or bronchitis

What Are the Serious Side Effects of the Jungle Formula Plug In Refill?

Serious adverse reactions to ambient pyrethroid vaporisers used as directed are rare. However, you should be aware of the following situations that require prompt medical attention. If you or anyone in the household experiences difficulty breathing, severe chest tightness, or signs of an allergic reaction — such as swelling of the face, lips, or throat — stop using the product immediately and seek emergency medical help.

Accidental ingestion of the liquid is a medical emergency. If this occurs, do not induce vomiting — contact the NHS 111 service or go to your nearest A&E immediately and take the product packaging with you.

What Should You Do If You Experience Side Effects?

If you notice any mild side effects such as eye or throat irritation, switch off the device, open windows to ventilate the room, and move to fresh air. Symptoms should resolve within a short time. If the liquid contacts your skin, wash the area thoroughly with soap and water for several minutes. If it enters your eyes, rinse with clean running water for at least 15 minutes and seek medical advice.

For mild skin reactions following insect bites or product contact, over-the-counter antihistamine creams or oral antihistamines may help. Your pharmacist can advise on the most appropriate option for your situation.

Can the Jungle Formula Plug In Refill Interact With Other Products?

No significant pharmacological drug interactions have been identified for this product when used as directed in an ambient setting. However, you should avoid using multiple insecticidal products simultaneously in the same room, as this may increase the concentration of active compounds in the air beyond safe levels. If you are using any other chemical treatments in your home — such as flea treatments or other pest control products — allow adequate time between applications and ensure thorough ventilation. Always inform your pharmacist of any other products you are using if you have concerns.

If you are concerned about any side effects, contact your pharmacist or GP immediately.

Patient Information Leaflet

Important - Before taking any medication, it is always important to read the Patient Information Leaflet (PIL)

Written and reviewed by our qualified team

GPhC Number: 2233073
Tarun Kumar

Reviewed by:

Tarun Kumar

Superintendent/ Clinical Lead

📖 Find out more about our team of medical content authors and how we ensure the accuracy of our content with our content guidelines.

Content last updated: 31 Mar 2025

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