N95 masks will give you a false sense of security if you use them against H5N1 or any virus for that matter.

We can wholeheartedly recommend one mask that offers much better protection. It's called the NanoMask® and it's manufactured by Emergency Filtration, Las Vegas, NV.

But first, examine the table below showing virus sizes, so you can judge for yourself how effective the NanoMask is. The abbreviation nm means nanometer, which is one billionth of a meter. N95 can only filter out material greater in size than .3 microns, which equal to 300 nanometers. This Nano Mask can filter out particles 3 times smaller than the flu virus. Most viruses you see in the table below are smaller than 300 nanometers (0.3 microns), therefore, N95's are useless against these viruses.

These tests were conducted through Nelson Laboratories, an FDA approved lab testing facility.