I heard that copper , aluminum (i. e. nets, etc) wood products, water (aloe vera, large aquariums), drinking water from copper containers (store for 12 hours) is beneficial/barrier agains emf. Also I heard some folks switch off electric boxes for night. Research/check for yourself.
Remember always, trust belongs only to YHVH Elohim (God) to Whom praise and glory forever.
with love to each one of you, your sister