Should I choose a wooden or metal framed HEPA filter?
Some customers assume that a wooden framed High Efficiency Particulate Air (HEPA) filter is a good choice as these are generally cheaper than the metal cased alternatives. However, whilst the filtration grade is the same, there are some important differences.
Naturally, a metal frame will be more rigid and robust than the MDF equivalent as well as being moisture resistant. This is of value during the installation process. However, the metal frame also includes grills to support and protect the filter media. Whilst grills are also optional on the wooden frame, this increases the price.
The wooden option is generally a great version for recycling and / or disposal by burning which would not be possible with a metal grill in place.
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