UL 900 Class 2: Air filters which burn moderately when attacked by flame, or emit moderate amounts of smoke, or both.Jul 14, 2017
What is a Class 1 or 2 air filter?
UL Class 1 – Air filters which, when clean, do not contribute fuel when attacked by flame and emit only negligible amounts of smoke. UL Class 2 – Air filters which, when clean, burn moderately when attacked by flame, or emit moderate amounts of smoke, or both.
Do MERV 13 filters stop Covid 19?
What kind of filter should I use in my home HVAC system to help protect my family from COVID-19? Minimum Efficiency Reporting Values, or MERV, reports a filter's ability to capture particles. Filters with MERV-13 or higher ratings can trap smaller particles, including viruses.Jan 12, 2021
What are the three types of air filters?
- Fiberglass Filters. This type of filter consists of layered fiberglass fibers laid over each other. ...
- Pleated Air Filters. A pleated or polyester filter is usually a significant step up from a fiberglass filter. ...
- HEPA Filters.
How thick is a 2 air filter?
High Quality Replacement 2 Inch Air Filters Our 2 inch thick air filters come in a variety of popular and customizable sizes and provide four different MERV ratings for your choosing.
What MERV rating should I use for Covid 19?
What kind of filter should I use in my home HVAC system to help protect my family from COVID-19? Minimum Efficiency Reporting Values, or MERV, reports a filter's ability to capture particles. Filters with MERV-13 or higher ratings can trap smaller particles, including viruses.Jan 12, 2021
Does higher MERV rating restrict airflow?
While the highest MERV ratings are the most effective for air quality, they can harm your HVAC system. A higher MERV rating means a higher resistance, which means less airflow.Sep 20, 2019