Pioneeryao Sport Dust Mask Cycling Running Outdoor Face Mask Starter Training Mask Dustproof Carbon Filtration Workout Running Motorcycle Cycling Mask (Black_A + 4 Filters)

Short version: Poor fit, bad quality, and not useful for Covid-19. Those raised plastic things are one-way valves that are designed NOT to filter the air you breathe out, so they let you spread germs to others. On the one the sent me, the valves were defective and do not seal properly when I breathe in, letting in unfiltered air. And it's super uncomfortable. Also, this seems to be a counterfeit knockoff of a brand-name (Rockbros) cycling mask.Long version:(1) This mask is designed to ONLY filter air you breathe in, not the air you breathe out. I didn't understand when I bought it that those raised plastic things are supposed to be one-way valves. Even if this worked as designed, it's not useful for the pandemic, as it's not meant to stop you from spreading your germs to others.(2) But it doesn't work as designed. The one-way valves do not seal when you breathe in, which is the whole point of a one-way valve! Other reviews flag the same problem, so I don't think this is a one-off defect with the one they sent me.(3) The fit is terrible. The ear loops are too small and are super uncomfortable. Also, the back strap is too big. I don't know who this would fit -- if your head is big enough for the back strap to work, you're not going to be able to get the ear loops on.(4) The packaging has directions that are badly written and make little sense, but clearly contradict what the seller says on the page about filter replacement (one week vs. one month).(5) The brand name on the packaging is "Rockbros," which doesn't match the listing. Rockbros is a US-based cycling brand, but this seems to be a fake knockoff, as the valves are different and there's no Rockbros logo on the mask itself. Also, an American brand would presumably be able to produce directions written in comprehensible English, instead of running Chinese directions through Google translate.(6) The packaging claims it's a KN 95 mask. Even setting aside the defective valves that are letting unfiltered air through, that seems rather implausible, as the filters themselves look really janky.

The mask arrived with one valve. The seller agreed for me to ship the mask back....all the way to CHINA. Shipping cost on me.

This mask seemed okay, but too small for my normal size adult male face.There was also only one "nice" filter with the mask. The replacement filters it came with were smaller and covered less area inside of the mask, making it easier for air to move around the edges. No activated carbon in the replacement filters either..

Four day turn around contact with Seller, they have promised to send the correct item at no cost to Me and have supplied a tracking number. It is August 29, 2020. I will update again when the replacement is delivered--.See my included photo of actual product. I purchased and reviewed this mask at the beginning of quarantine back in March 2020. The first mask sent was perfect. (top image in photo) Exactly as pictured. I immediately purchased two more, and after some time decided to buy two more. The next two sets of masks delivered were NOT what I purchased, they do not include the over the ear straps. Without the straps these masks put a lot of pressure on your nose and are too painful for any of My family to wear.

Poor quality, does not fit over ears, weird back tabs. No instructions. No filter in the plastic part. Going in the trash.

When I bought these they were $16.99. Now they’re $5.99. Makes absolutely no sense. That said, the masks aren’t very big. I have an average to maybe slightly above average head size, and the strap that goes around the back of the head barely fits. The masks seem to be decent quality other than that. There are better options than this on Amazon.

it got shipped from usa. East Coast. arrived very quickly to where i am at in Colorado. Good reviews. Has space to breathe easier. Largest downside is it really does not stay in place and will move all around. does not stay on bridge of nose. no matter how you roll the dice. basically tad too large.

The mask quality is very nice. No complaints about that. The cut and fit is great for average/regular adults. The finish and edges are well made and comfortable. The mask fit my wife and teenage son perfectly. When it came to fit on me, the ear cords/rings are too tight. I am a 6'2", 250Lb man and when I went to put the mask on, the ear cords were too short and they would not go around/over my ears. If you do not use the ear cords, the mask drops off your face. This is purely a size issue and does not take away from the build and quality of the mask. I just wish they had a larger size for larger builds/heads.