Sorry couldn't helpYou know, I genuinely feel that instead of going behind building temples and those stuff, out country could have been helped a lot if that money was more utilised for building hospitals and Covid treatment. Many lives would have been saved.
He further said that states and union territories should encourage the use of homemade cloth masks, which can be made by following guidelines issued by the Health Ministry.
Filtration efficiencies of the hybrids (such as cotton–silk, cotton–chiffon, cotton–flannel) was >80% (for particles <300 nm) and >90% (for particles >300 nm). We speculate that the enhanced performance of the hybrids is likely due to the combined effect of mechanical and electrostatic-based filtration.