Caracterização e desempenho de filtros com nanofibras e HEPA utilizando nanopartículas

We compare the performance of a traditional HEPA filter medium with other types of filter media containing nano-fibers paying special attention to the nano-particle size range below 100 nm. We characterized all media both at micro-scale to study their fiber size distribution and at macro-scale to measure their airflow resistance and removal efficiency resolved by particle size down to a few nano-meters