We had to find something to cover our registers without restricting airflow as much as possible. It's about moving into an old house and not being able to clean the HVAC yet. I was terrified of what would blurt out when the oven was turned on, so I looked around all the registers and hoped for the best. Thanks, they work great! Easy to cut into any shape you want and easy to stick with the included tape. The tape that came with it definitely helped, although I'll be buying more next time I'm shopping since I've run out! Will definitely buy again and would highly recommend, especially for allergy sufferers.
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