This has changed my life! I am allergic to cats but I can't live without them. I was losing sleep from snotting and blowing my nose all night. Years ago I would shove kleenex up my nose as a filter. It worked but it was tickly and a nuisance. I started buying these Woody Knows filters a month ago and I haven't snotted since. Keeps the cat dander out of my nose. It works best for me when I change he filter every 2 to 3 days or it starts
to feel like I'm not getting enough air. It was difficult to change at first but it is easy now.

I ordered these last fall after a horrible allergy season and have been using them for 4 days now that it's spring. Wow!! I can breath and go outside and eat without being stuffy. No asthma!

It took me a week (the snow has been melted a week) to realize the my moodiness, hoarse voice, breathlessness, fogginess, lack of sleep, etc. was pollen (it helped that I had tracked symptoms for the last couple of years). Relief was immediate when I started using masks and nose filters. Took a couple of days for the moodiness to fade, but breathing and sleep and back to normal right away.

There was a learning curve. First, you're deliberately sticking a foreign object in your nose, something we're trained from childhood not to do. Weird as expected. Second, there's a strong urge to pick your nose, and the need to fiddle with the odd thing in your nostrils. Yes, my kid did mention I had something weird in my nose. Expect to explain your new nose accessory. I agree with the reviewer that said it would be nice to have one that deliberately looks like a nose ring. Not my thing, but at least that's fashionable.

Wet filters don't stay in place well. Good to know for the shower. Dry carefully before insertion.

There is a slight drag on airflow. Don't expect to walk fast or run with these babies; that's what a mask is for. Masks are better for sleeping, too. I use cotton or silk masks I made myself after researching filtration rates and porosity.

They're less noticeable than masks, plus you can eat with them, which was a major problem before.

I still get hoarse and breathless when speaking a lot without a mask, because pollen affects the throat. Talking requires a mask.

Bought a multipack because I didn't know which size I was for sure, turned out I need a small.

All the medicine in the world can't prevent the pollen from messing me up in the first place, so I'm all about prevention, and nose filters and masks have made me 100% symptom free. With results like these, I'm going to keep them in stock.

This was my second try. I tried the round first. These are better, despite the fact that I really don't have slitted nostrils. They are still a little large. And that's the smallest size. I can work with this. I still look like my nose is swollen, but not as bad as the round. Need a smaller size for women. I want to wear them this spring when outside.

I am highly allergic to animals and packed these on a cross country flight, just in case of animal exposure. A dog, the size of a pony, was on our flight a couple rows away. I wore these the entire flight and while I still had an allergic reaction on my skin due to the animal, I didn't have allergies in my sinuses. I highly recommend these for allergy sufferers. I find almost anything on face to be uncomfortable for an extended time, yet these were comfortable to wear for 6 hours. They had a good seal in my nose and I could still breath easily. They went in quickly and stayed in place. Your nostrils may look slightly enlarged, but it's only noticeable if someone is really examining your face.

Trying them out right now -- comfortable so far. Easy to use. Breathing feels natural, unrestricted.
That being said, I will continue with my nasal steroid to help with my clogged nose.

Offering 3 sizes in one package is brilliant -- now my husband can try them too!
These are helping me cope with the poor air quality of our house :)