Yeah I was thinking a filter might be what one wants. Light and "WiFi" RF are both radiation of the same fundamental type... they are different frequencies.
And most plants will grow like crazy when given UV light (UVA, some UVB). The whole notion of RF/EMF radiation causing harm is unfounded without going through extreme measures to cause harm. Vegetation grows just fine near cell phone, radio, TV, WiMAX and satellite broadcast antennas and towers. They have been around for a long time now. You think that if there was anything real to this exposure that it would have surfaced by now.
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