Bacterial Viral Filters for CPAP + Ventilators
 Amount: 1 FilterAmount: 5 FiltersAmount: 10 Filters 

Bacterial Viral Filters for CPAP + Ventilators

PRICE:  £5.00(plus 20% VAT if applicable)
Most products qualify for Zero Rate VAT Relief which will be shown at checkout if applicable.
Please read the VAT Declaration below.

Part Number:  AG7178/342077
Brand:  AG Industries

  (14 Reviews)

AG Industries

These Bacterial Viral Filters are an extra protection against allergies, viruses,  mould, dust and other irritants, and are particularly helpful for allergy sufferers, asthmatics and people with recurrent lung/respiratory infections.  

The In-line Bacterial Viral Filter is an additional protection to help allergy sufferers, people with recurrent infections or lung diseases and protection from air-borne viruses.  They have a bacterial and viral efficiency of 99.999+%.  The filter is designed to prevent any germs, irritants, mould or dust that may have got through the machine's filters, from entering the mask to provide the cleanest air possible.  These filters are also suitable for hospital use with mechanical ventilators, anaesthesia machines, manual resuscitation devices and IPPB machines.

These disposable filters are compatible with almost all machines, and the recommended length of use under normal circumstances is 30 days, but it is easy to see when they need replacing through the clear filter cover, as dirt will cause the filter to change from white to grey or black, and it is important to change them when this happens!  Some people will 'feel' when to replace them if their symptoms reappear (such as allergies, nasal congestion, wheeziness etc).  However, when used in hospitals the filters should be changed at least every 24 hours.

The filters supplied are by AG Industries or Philips Respironics, which are the same product, and we will send whichever we have available at the time, as these filters are in high demand.

A single Filter can be purchased, or you can buy a Pack of 5 or 10 which is more cost-effective and also makes it easier to identify with a new one when to change the one in use, by comparing the difference in colour.

The In-line Bacterial Viral Filter cannot be placed between the machine and the hose/tubing connection on machines which come with heated hoses, such as the Resmed's Climate Line Heated Tubing with the S9 and Airsense machines, Fisher & Paykel's Thermostat Heated Hose or the Respironics' 60-series and DreamStation Heated Tubes.   In this case, the In-line Bacteria Filter could be placed between the hose and the mask, but bear in mind this will add weight at that connection.  However, the Bacteria Filter CAN be used with the Hybernite Heated Hose.

An additional Elbow Swivel Adapter or siimilar will be needed for use with the Devilbiss Sleep Cube (Intellipap) Machine if  using a humidifier too, and this will be needed with any other machine if the connection is not secure.


  • If using the filters with an APAP machine with automatic pressures which average out lower than 7 cm, please do not purchase these as they 'may' affect the airflow.
  • There are disposable filters and should not be washed and re-used.
  • These filters can be used safely with humidifiers, but if the filter gets accidentally wet it is important to allow the filter to dry before use.
  • Do not allow the filter to get too dirty before replacing with a new one, as this could affect the airflow.
  • These filters are latex-free, but may contain phthalates so children and those pregnant or breast feeding should seek medical advice before use.
Average Rating (14 Reviews):  
Write a Review and share your opinions!

Wednesday, 13 May 2020  | 

Exceptional customer care in difficult circumstances, will definitely be a returning customer.

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We were pleased to help you John 😊

Tuesday, 24 March 2020  | 

great service and good product particularly at this time

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Helps reduce tube noise
Thursday, 13 June 2019  | 

I've a Qtube at the machine end and this filter by my ResMed P10 nasal pillow. For low pressures (6+) the tube noise is minimal. The filter gives me more confidence with the QTube as it'll filter any foam fragments - if there are any. It does mess up the CPAP auto, as the machine isn't so sensitive - but I had the min pressure upped a bit (4 to 6) to cope; is an auto actually needed - hmm, if I didn't have an auto, I definitely stick with this arrangement.

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Value & Service
Sunday, 25 November 2018  | 

Good quality product at a reasonable price coupled with excellent service.
Prompt delivery, will buy again.

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You have to have these
Saturday, 4 August 2018  | 

I only started using my CPAP in May this year (2018) and was supplied one of these Allergy/Bacteria Filters by Philips with my machine. Although Philips supply the other little pre-filters FOC, for some reason they do not supply these. Since I became a diabetic in 2002, I've found I am susceptible to lots of allergies I never had a problem with before, so these post machine filters are a necessary item. Hope2Sleep are the cheapest on the net and a godsend for people with allergies.

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1 of 1 people found this review helpful.


So pleased to hear they're helping you.

Makes a difference
Thursday, 12 July 2018  | 

My husband and I both have asthma as well as sleep apnoea, and we got these filters to help our symptoms. Oddly enough, my filter turned grey and needed replacement after a month, while my husband's is still perfectly white! Our only guess is that it is due to his machine being near the bedroom window, so perhaps getting fresher air on the intake than mine does. In any case, neither of us will be without these filters again. Well worth it!

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1 of 1 people found this review helpful.

Why settle for an imitation
Friday, 17 November 2017  | 

Name brand product that really works. Better price than you can get them for in the States (including shipping) and no tax. What a bargain

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Bacteria Filter
Friday, 1 September 2017  | 

Great product. Air felt clean from first use. Very quick delivery.

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Must have addition
Friday, 14 April 2017  | 

I use these with my Philips system one. I take it everywhere travelling. In one of the locations where I make extended visits, this filter is black after 4 weeks of use proving its effectiveness. I suffer slightly from Athsma as well so consider this filter vital.

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Sunday, 26 March 2017  | 

The reviews of this product seemed positive and so because i have been suffering from sinus issues i decided to give them a go. I am so glad i did.
The difference in air quality is incredible. So much cleaner, noticeably so, and my sinus became to clear almost immediately.
What i really liked was the air quality, which i can only describe as being "soft". It was so much nicer to be breathing and the air pressure, while being maintained enough to register on my auto CPAP, made it easier to breathe. I really, really like this product and recommend it 100%. It is also great value for money.
Hope 2 Sleep were brilliant as well. Excellent communication during and after the purchase and super quick delivery. I will definitely be a returning customer because of the service and value for money compared to other sites. Very happy

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Read all 14 customer reviews...


We try our best to ship all orders received by us Monday-Friday on the same working day if received before 12 noon, and more often than not orders processed before 3 pm will be despatched the same day whenever possible.  Weekend or UK bank holiday orders are sent out the next working day.  An automated email is sent when products have been despatched so please check your spam box and add us to your safe senders list.  Also, if you do not receive an email confirmation, please check that you have typed the correct email address in your account.

All orders are sent via 1st class mail within the UK.  Masks and some other more expensive products are always sent via 'signed for' insured delivery and cannot be left in 'safe' places, but there is the option for an alternative shipping address when processing the orders.   International orders are sent via tracked Airmail, and whilst we're happy to ship internationally, we cannot be held responsible for any charges that may be added in your own country.

Delivery charges are worked out automatically by weight and you can clearly see the delivery charges before purchase.  On the rare occasion delivery charges are miscalculated by the website, a refund will be sent, as it is not our policy to make money on postage charges and neither do we add the cost of delivery into the price and offer so-called  'free delivery' like some sites and Ebay pressurise sellers to do!

Wherever possible with larger parcels, we try to re-use boxes to keep shipping costs down and protect the environment.

If a product is out of stock and the order contains multiple items, the 'in stock' items will be sent immediately and further items will follow upon arrival with no further postage charges incurred.  


Masks and most products cannot be exchanged, unless faulty, due to health and hygiene issues, in accordance with the Consumer Contracts Regulations, (as stated in our 'Terms and Conditions' ) and where you will find our return address, so if you are unsure about any product please contact us BEFORE purchase or BEFORE opening a sealed packet.

Unopened (sealed) products in their original packing can be returned within 14 days for a refund of the product cost, but the purchaser is to pay the return postage, and we would advise retaining proof of postage.  This excludes any faulty goods, for which postage will be reimbursed.  A full refund for the price of the product will be issued when received by us, less the original postage charges when the order was sent to you.



Most of the products we sell are eligible for Zero Rated VAT in the UK and Europe, and in order to qualify, you should meet the criteria for the following HMRC VAT Declaration:-

  1. You or the person you are purchasing on behalf of have "a condition which the medical profession treats as a chronic sickness," (sleep apnoea and sleep disordered breathing, which require therapy, are such conditions).
  2. "The goods or services are for the personal or domestic use of the customer."

We cannot advise on individual cases, but more information can be found on HMRC’s website under notice 701/7 on the following link

If you are purchasing on behalf of someone else who meets the above criteria, you must provide their name and address, and you will be prompted of this during the checkout process.

Customers living outside of Europe do not pay UK VAT charges, so please leave the the 'zero rate eligibility' box ticked.  However, we cannot be held responsible for any additional costs incurred when the products reach your own country.

If you are purchasing with the intention of re-selling any products, you are liable to pay VAT on all products so you must untick the 'zero rate eligibility' box which will add VAT to your order.

Any products that our not eligible for zero rate VAT, will not display the VAT Declaration, and VAT will be added at checkout.