COVID-19: All orders are still being processed and dispatched, although due to the current crisis there may be a delay in the delivery of your order. Thank you for your patience.

Get In Touch

Fill in your details below and click 'Submit'

Customer Login

Order before 4pm for Next Working Day Delivery
Free Delivery on all orders over £50
1 Hour Delivery Window
Discreet Packaging
Price Match Promise

Pest Expert XL Formula 'P+' Cluster Fly Power Fogger 530ml

The Pest Expert Formula 'P+' XL Fogger is a total-release aerosol device for fumigating cluster fly infestations in very large lofts, roof voids, or open-plan living areas e.g. barn conversions. Over 3 times larger than a standard Fogger, the XL Fogger will treat up to 500 cubic metres.
Our Price

Select Quantity

Qty From Qty To Unit Price
1 £10.95
2 £10.95

More Details

The Pest Expert Formula 'P+' XL Power Fogger is a total-release aerosol device for fumigating cluster fly infestations. Once activated, the XL Fogger releases an insecticidal gas which is ideal for getting rid of cluster flies in lofts, roof spaces or other areas of the home.

There is no fire risk with a Formula 'P+' XL Fogger as it does not need to be lit, and it leaves no surface residue, making it ideal for use in sensitive areas.

The canister takes 5 minutes to empty its contents. Being three times larger than a standard Fogger, the XL Fogger will treat an area of approx 500 cubic m for cluster flies, so is ideal for treating a very large roof void, a large open plan living area, or a barn conversion with vaulted ceilings. 

As there is no long-lasting effect once the gas has dispersed, we recommend use alongside residual insecticides such as Pest Expert Formula 'C+' Cluster Fly Spray and Formula 'P' Cluster Fly Powder.

Contains 0.2% w/w natural pyrethrins.


How To Use Pest Expert Formula P+ XL Fogger
Shake well before use

  • Close all windows, open all drawers and cupboards
  • Remove cap
  • Place aerosol canister in the centre of the room
  • Press down completely on the perforated side of the nozzle and leave the room
  • Close the door behind you
The can will take approximately 5 minutes to empty and is sufficient to treat an area of up to 500m3 for flies, 150m3 for moths and fleas, and 70m3 for bed bugs, cockroaches and other crawling insets.

Applications: for amateur use indoors in domestic premises including kitchens, and outdoors on patios, paths and wasp nests.
For professional use in public hygiene areas including kitchens, hospitals (not occupied wards), hotels, restaurants, public and municipal buildings and on boards ships. For use outdoors on patios, paths, amenity areas, transit stations, refuse tips and wasp nests.

May be used in the cargo holds of aircraft for pre-flight treatment and refuse vehicles. For use in and around farm buildings, bow byres, pig sheds and milking parlours. For use in poultry house against poultry red mites and litter beetles.

Not for use on grain or in grain stores.

Space sprays containing (non-residual) pyrethroids or pyrethrins must not be used more than once a week against house flies in intensive or controlled environment animal houses as the could cause control failure due to insecticide resistance. If more frequent treatments are required, use a product with a different control methods (such as bait).


  • Wash hands and exposed skin before meals and after use
  • Keep in a safe place
  • Pressurised container: protect from sunlight and do not expose to temperatures exceeding 50°. do not pierce or burn even after use.
  • Keep out of the reach of children
  • Wash any contamination from skin or eyes immediately
  • Keep away from sources of ignition – no smoking
  • Do no spray near a naked flame, electrical equipment or any incandescent material.
  • Until dry, treated surfaces can pose a fire risk
  • Do not handle treated fabrics until dry and air thoroughly before use.
For professional use only, the following additional precautions apply:
Collect eggs and remove feed, exposed water and milk before application.

Customer Reviews

Write a review
5 Stars
Mark -

What can I say, good service and the product works too. Cant ask for any more

5 Stars
Grumpy -

Product arrived next day as described great service

5 Stars
Trevmm -

Excellent product, just set it up and wait for the results, does exactly what it says on the can

5 Stars

This really works; quick, efficient and long-lasting. Plue delivery was smooth and efficient ... can't ask for anything more!!

5 Stars
Tintin52 -

Cluster fly problem sorted!

We had quite a serious cluster fly invasion in one of our loft spaces (3mx6m under pitch) and flies suddenly appeared in and from down-lights in frightening numbers. I bought two of these canister "bombs" but, in the event, one was sufficient to eliminate all the flies in our loft.

Only thing to be mindful of was picking a still day to let off the bomb - our loft like many is far from airtight and on windy day I suspect the draughts through the loft would significantly reduce the effectiveness of this product.

5 Stars
Waddo -

A good product, just what i needed and easy to use, Cheers.

5 Stars
JS -

A good product & an excellent service.

5 Stars
Mo -
West Sussex

Seems to work well does not instantly kill flying insects but works well after a few mins.would buy again and would recommend.

5 Stars
Bean -

Had this fly kill few wks now & its got rid of all the fly now and its still getting them much better than spray that smell thanks easy to clean

5 Stars
Happy -
South East

Job Done.

Did exactly what it said on the tin, easy to use though you need to leave the house for a few hours, no smell when I returned would not hesitate to use again if I had to.

5 Stars
Nev -

We suffer from a plague of attic flies that emigrate at intervals into our landing and bedrooms. Last year, around October I set off two smoke units and a couple of hours later we vacuumed around 500 dead flies up from the attic floor. Did the same again this year and killed a couple of hundred - good progress!

Hopefully we will eventually exterminate the lot of them. The smoke units are doing their job.

5 Stars
Glenn -

These are much bigger than the ones you can buy in the shops but at the same price and with the same concentration.well worth it

5 Stars
Moorse -
Hammersmith, London

Excellent product.

These are great value for money.

5 Stars
HotRod -
North Wales Attic


This stuff was superb. Used in an attic space that was full of flies. Left this in the room to do its stuff, and when I peeked in, the room was full of dead bodies. more dead bodies than I imagined there would be (hadn't realised there were so many flies)!! So far, they haven't returned. I would definitely recommend this product, and the next day delivery! Superb.

5 Stars
PJay -

Highly recommended.

Also useful is that not all the contents have to be used in one go.Delivery very efficient. Highly recommended and will order again.

5 Stars
Angel -


Easy to use and haven't seen a moth since - fingers crossed