WoodyKnows Super-Defense Nasal Filters with 24 Pairs of Replacement Filters(Narrow, Small, 3 Pack)

I am in India for 4 months in a city with heavy pollution. I use these when traveling across town in an open 'auto rickshaw' where you are open to thousands of vehicles. I use them along with a face mask and it has helped a lot.The only problem I have with them is that they ARE quite noticible. The plastic is a pink colour and would be less noticeable if it was just clear plastic. Then the foam filter is white which makes your nostrils look very strange. The inside of one's nose is dark not bright so it would be much better to have darker filters. I really wouldn't want to wear these while walking around.But apart from that they are effective. I tried the more breathable reusable nose filters but it didn't feel like they made any difference. These are harder to breathe through but to me that shows that they are working so I don't mind.I think these would be useful for anyone who travels on polluted roads maybe by bike - but add on a mask on top.****UPDATE****For the first time EVER it looks like a company actually listened to it's customers and made the changes we wanted!!The new filters are a vast improvement - the plastic is now clear - the inside is now dark - the plastic seems softer - the filter is also new so i will update this again once I try it for a while.Overall these filters are excellent. I am now using them for hay fever/ allergies too and they are working very well.Can I just remind everyone to give them a few days because initially they feel strange - but you really do get used to them.

Works but quite uncomfortable to wear for more then a few hours

The replacement filters provided are quite simply, not filters, lacking one element described, consisting of one piece of material. Total rubbish. This is the second time this has occurred and I advise against any purchase of these replacement filters as they are not fit for purpose and legally in breach of trade description. The photos shows both sides of one filter and as can be seen, the same on both sides of the filter, lacking the primary filtering element. This is the second time this has occurred. Quality control is non existent as this matter has been flagged up with a previous order. NOT FILTERS !

I have suffered sinus problems for many years, due to an allergy to house dust mites. While browsing on Amazon for something to control dust mites, I came across this product and decided to give it a try. For years I have attempted to treat my symptoms by using nasal sprays, decongestants, anti-histamines etc, etc. These are largely ineffective and it seems to me that prevention is better than cure. For this reason this product seemed like a good idea. In each pack you will receive 3 re-useable filter holders and 12 disposable filters which are made of thin foam. The filter holders act as frames into which the foam filters are placed. Each pair of filter holders is joined with a strip of plastic. You push the filter holders into the nostrils, leaving the connecting plastic strip outside the nose at the base. The filters sit inside the nose and simply act as a barrier, preventing allergens getting up the nose and into the nasal passages. When you want to remove the filters, you simply pull them down using the plastic strip. A very simple idea which initially I found very effective. Indeed I reviewed this product shortly after buying it and gave it a 4 star review. However, some months later, after having a bad experience with the filters, I have edited my review and reduced my rating to 2 stars.The main reason for my change of heart is that the foam filters are not held securely within the filter holder; they simply sit loosely inside the filter holder and in consequence they frequently fall out. This didn't seem like a huge problem initially, more of an inconvenience. I normally wore the filters overnight and I am not a restless sleeper. Nevertheless when I woke up in the morning, more often than not one of the filters would have fallen out in the night. As I have said, this didn't seem like a major problem initially but after using the filters for a few months, I had a really bad experience. I woke up during the night coughing violently and feeling as if I was choking. I tried to drink some water and every time I swallowed it felt as if I was swallowing razor blades. I also still felt as if I was choking. It felt like the worst sore throat I have ever had. I sat up in bed, knowing that I would not be able to sleep because of the pain and a few minutes later I coughed and out of my mouth popped a foam filter. Immediately the pain reduced but I was still left with a rough, painful throat which in the end lasted for a good 5 days. There are 2 possibilities - the first is that the foam filter went right up my nose and down into my throat where it stuck. The second possibility is that the filter fell out onto my pillow and somehow I swallowed it, but it stuck in my throat. The first possibility is the most worrying. If the filter can go right up the nose, could it be breathed down into the lungs? I am not a doctor so I can't answer this. I also cannot explain why a tiny piece of foam could cause so much pain. All I know is that I stopped using these filters and have never used them again. This is a shame as I found the filters really effective. However, the design needs to be changed. There needs to be a way in which the filters are held securely inside the filter holders. It is vital that the filters are not able to fall out. I will not use the filters until this happens.

This I think is a life saver for me as I recently started working in a sick building - all glass, no windows to open central heating/air conditioning system. I was sick with a cold, which turned into bronchitis 3 times over the period of 2 months as were all my colleagues - some caught pneumonia (eek). In addition to taking the right vitamins, this baby here I believe has helped prevent unwanted particles from getting into my respiratory system.... It's early days yet to say for definite that it is working (about month) , but I haven't become ill again yet, although my colleagues have been..... I give it 4 stars instead of 5 because of the design. I am of African heritage but have a somewhat "European" shaped nose so this did fit but not as well as i should. This item probably work for an African with rounded nostrils though.