microaerosol

mi·cro·aer·o·sol

(mī'krō-ār'ō-sol),
A suspension in air of particles that are submicronic or, more frequently, from 1-10 mcm in diameter.

microaerosol

(mī″krō-ĕr′ō-sŏl)
A fine aerosol whose particles are of uniform size, usually less than 1 μm in diameter. Particles of this size are usually so small they pass in and out of the respiratory tract without depositing on its epithelium.

mi·cro·aer·o·sol

(mī'krō-ărŏ-sol)
A suspension in air of particles that are submicronic or from 1-10 mcm in diameter.