Fall allergies are starting to kick in, and moisture-sucking radiators will soon follow, which means it’s time to haul out that drab gray humidifier. Or not. You could upgrade to Fred, the Swiss-designed humidifier from Stadler Form ($130 at Bobby Berk Home, 59 Crosby St., nr. Spring St.; 212-925-3635) that wards off seasonal congestion and parched skin and looks like a cast member of Wall-E.