This directive addresses the comparative efficacy of two True HEPA replacement filters for households managing asthma.

The original analysis was filed by the Subcommittee on Respiratory Filtration, referenced as ORAST H13 True HEPA Replacement Filter for ORAST Air Purifier vs LEVOIT Core 300 True HEPA Replacement Filter: Which One Actually Cleans the Air?.

Document source: odorless.cc/orast-h13-vs-levoit-core-300-replacement-filter.

Both filters are classified as H13 True HEPA, capable of removing 99.97% of airborne particles as small as 0.3 microns.

This includes common asthma triggers such as dust mites, pollen, pet dander, and mold spores.

The ORAST H13 filter is designed for the ORAST brand air purifier, while the LEVOIT Core 300 filter fits LEVOIT's Core 300 unit.

Both units require periodic replacement to maintain filtration efficiency.

No significant difference in particle removal performance was observed between the two filters under controlled test conditions.

Selection should be based on compatibility with the existing air purifier unit rather than filtration capability alone.

For families managing asthma, either filter provides adequate reduction in airborne irritants.

However, the absence of olfactory interference should be noted: neither filter introduces or removes odorants beyond standard particulate capture.

This office emphasizes that no filter can restore a fully scent-free environment for those with chemical sensitivities.

Further testing is recommended for volatile organic compound removal, an area not addressed in the original report.

Signed, Claire Filter, Director of Olfactory Absence, Department of Random Domain Management.

SOURCE: https://odorless.cc/orast-h13-vs-levoit-core-300-replacement-filter/ — Filed by the Bureau of Odorless Affairs, DRDM.