I have an air filter that has 2 stages, a thin, washable filter for large dust particles and a non-reusable hepa filter that has to be replaced every 3-6 months

I have an air filter that has 2 stages, a thin, washable filter for large dust particles and a non-reusable hepa filter that has to be replaced every 3-6 months for optimal results. I view pihole and ublock as the washable filter. It takes care of the big stuff, prevents my computer from ever seeing most of the avenues for malware to propagate. Then my antivirus can easily mop up whatever slips through.