Grin Health N99 Anti Pollution Mask with Air Valve, Activated Carbon, Safty HEPA, Reusable & Washable, Durable (GHAir+, Blue, With Valve, Pack of 1, Fits-All) for Unisex

Awesome mask!First and foremost, I'm incredibly pleased after being concerned that I paid too much for a pollution mask.Having allergies and pollution in as start getting cold in Delhi and I decided to give this mask a try (bought 2/3 brands). Grin Health Mask turned out to be so comfortable and greatly reduces my exposure to dust mites – I’m used to Delhi Metro, for filtering dust off and I feel safe in the crowd and dirty places. It's very comfortable, and dust or dust mite junk or pollen no longer irritate me or in case panic terror of bird flue in Delhi. Not to mention that it's compact for travel,, I m using these everyday about 2 hrs last 6 months and no problem faced as of now.QUALITY: The build of the mask if very durable and professional. The stitching is all well done, and the securing head bands around the back are thick nylon bands with beads on the ends that allow a comfortable, custom fit around your head while also seeming very durable.PERFORMANCE: The mask stayed on my face for 2 hours while I breathed, talked, moved around, and even at one point lifted up the bottom to take a quick drink. In that ½ hours, I never once felt annoyed by it being on my face. In fact, I hardly noticed it was there. There was no restriction to my air flow, but I also had no allergic reaction to any of the hair or circulating in the air. Normally after an hour I would have been sneezing up a storm with my nose running.Great easy design on preventing allergens, while keeping air flowing cool and normally to your nose and mouth.OVERALL: It filters almost all type of particulate, is durable in city use, is very lightweight and not noticeable on your face, and that’s not all..it does protect from diesel, petrol particulate. I'll update when I use it in spraying chemicals conditions, well worth what I

For GHAir+Super comfortable fit. Breathes better than most N99 and some N95 masks. Works well in traffic and heat. Can be used with ear loop or head loop with included clip. Fit is a tight within a full face helmet so would not recommend for that use case but good for everything else.For Valve modelCan only be used only with ear loop but it's very soft. Good seal around the face. Sits well even within a full face helmet. I don't know what the white clip is for because the ear loops are too short to be pulled behind the head.Reduced 1 start for shady seller practice (you know what it is).

I ordered this mask last year in 2018 and was extremely happy with it. I used it for many months (till about Match 2019) with one wash in between and I could actually feel the difference while inhaling Delhi's infamous air with and without the mask. It was very effective in blocking smells too. Hence I reordered it again this year even though the previous mask still seems to be functional. However the mask I received this time is quite different from last year. Earlier there was a white cloth lining inside (left in the image) but this one just has a coarse black inside lining (right in the image). I don't know if this is a change in design or I have received a defective/used piece? Hopefully the seller can clarify. Also, the fit and functionality is not as good as the previous mask. It doesn't seem to be as effective at filtering out the pollutants and smell of the air as the last one and it feels slightly difficult to breathe while walking at a moderate pace, which was not the case earlier. Any other recent buyers can confirm if the product they received has a white inner lining or just coarse black no inner lining? Also, I did not receive any knobs for adjusting the length of the straps like some people have.UPDATE: After posting this review I was contacted by the seller - they explained that the difference was due to a design change and they immediately shipped a replacement overnight via courier, which was appreciable. The replacement was a double valve mask, and unfortunately this one too did not have any knobs to adjust the ear straps. It felt a bit loose to me for my face, and this one also does not barricade the ambient smell and smoke as much as the 2018 product did, but is still slightly better. Hence I am updating my rating from 2 stars to 3 stars.

The paper that comes with the masks doesn't really explain the specs for this mask. N99 is mentioned and P2.5 which are common rating measures are not clearly explained as to if this is a spec for the mask,i.e. an N99 rating, or if it is a "series" of masks, i.e. marketing names.Plus there are two little black things with a thin silver cord that is not described nor instructions given. They could be like glasses holders that keep the mask from falling away, or nose plugs, or finger exercisers. I'm pretty clever but these have fooled me.Their excellent customer service people answered my questions -- I was impressed by their quick response. The black things are for adjusting the size of the ear straps if needed for smaller heads and the N99 does reflect passing or exceeding the N99 test. Better instructions would still be helpful.The mask fits nicely even with my beard and breathing is made easier with the exhale port. Black with black port seems a lot nicer than black with white port or white with orange or other colors. I would prefer a floral or somehow neutral medium color with textured print-- even flesh tone -- as a full black mask can look ominous!