Nanoporous coatings offer dual functionality of anti-reflection and anti-fogging. Potential military applications include goggles, laser safety eye protective lenses, chemical/ biological face masks, ballistic shields for explosive ordnance disposal personnel, and windows for vehicles. Mist deposition is fundamentally inexpensive and may have commercial applications in the plastic optics industry for eyeglasses and cellphone camera lenses, sport and diving goggles, auto windshields, windows in public transit vehicles, solar panels and green-house enclosures, and architectural products. Nanoporous coating technology is applicable to anti-reflection coatings for the electromagnetic spectrum from UV through near-IR. An immediate need is for coatings on large (2.5 m) PMMA Fresnel lenses intended for the EUSO extreme energy cosmic ray telescope. Previous coatings have given poor adhesion on PMMA. NASA's contribution to this international mission depends on design of a plastic lens telescope whose antireflection treatments show very high optical efficiency over a wide UV band, large area uniformity, conformal deposition, low film stress, and minimal scattering and absorption.