Review on No Toil Castle One Year Furnace Filtration by Pop Henneghan
The best filter in the world...
These Merve 8 filters are the best. Since I bought mine, I've also replaced my dad's filter with the same one. He has severe COPD and emphysema and reports a significant improvement in air quality. Anyone reporting that these filters are poorly designed should first consider their HVAC system's inability to handle the more limited airflow of the merve 8 filter.
- Building materials
- Expensive
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