Frequently Asked Questions

The filters are made with hypo-allergic materials and had been tested for their safety via several studies (you can find the results of those studies in our Blog articles). Additionally, as a business we never had a complaint for any allergic reaction to the filters but it is always wise to test the product to a non-sensitive part of the skin, for several short time periods before proceeding with extended use.
Not each person can respond the same to the Nose Filters, however based on Scientific studies (that can be found in our Blog posts) and as reported the vast majority of our customers (testimonials are provided in our website and in several other external websites), there is usually drastic improvement in the Nose Filters user's respiratory and overall health, especially when it comes to prevention of allergic reactions caused by airborne particles and pollution.
According to the manufacturer, you may wear the filter continuously for up to 24 hours. You may do all your everyday activities including sleeping while wearing the filters.
There are 7 pairs of FDNS Nose filters in the package that is available for sale in our shop. That is enough to use for up to 1 week (one filters for 24 hours if used properly)
In the shop we have available the medium size which is good for the vast majority of adults with small to average nostril length size.
  1. Clear nasal passages and dry nose.
  2. Carefully remove nasal screen from protective backing.
  3. Open nasal passages as wide as possible.
  4. Place nasal screen with tip adjacent to tip of nasal passage adhesive side up.
  5. Apply by gently pressing seal around entire nasal opening.
  • For best results, use a mirror.
  • Keep the filters stretched when applying them to the nostril
  • If you mess up applying for the first time, remove the filters and try again.
  • Do not use the filters anymore if the filtering membrane becomes too polluted or if the adhesive material is not sticky enough to provide an airtight effect
For all of our email subscribers we offer a 10% coupon code to use for purchasing the FDNS Nose filters found in our shop.To get the code you just need to subscribe to our Newsletter by filling and accepting the form found on our Homepage. Then you will receive an email at your registered address giving to you a coupon code to use the next time you purchase our filters.The discount code can be used on the checkout / payment completion form. If you have any more questions send us an email and we will be glad to help! 
Shipping rates & delivery estimatesShipping charges for your order will be calculated and displayed at checkout. Typically the charges are as follow:
DestinationShipmentmethodTrackingCodeEstimated delivery time*Shipping Rates**

International / Local

Standard ShippingYes8-15 business days


International /LocalExpress Shipping (EMS Datapost)Yes2-7 business days


* The expected delivery time starts counting from the day  that the goods are shipped by our company.Prices are subject to change so please make sure you confirm you accept the shipping fees before finalizing your payment at checkout.
On this link you can find detailed info for our Refunds Policy.If you have any additional question please let us know by using the Contact Us form! 
On this link you can find detailed info for our  Shipping PolicyIf you have any additional question please let us know by using the Contact Us form!