PREempt RTU is a powerful disinfectant that uses the Accelerated Hydrogen Peroxide (AHP) Technology. PREempt RTU is an intermediate level disinfectant effective against a broad-spectrum of pathogens including Norovirus. EFFECTIVE AGAINST A BROAD-SPECTRUM OF BACTERIA, VIRUSES AND FUNGI IN 3 MINUTES! Virucidal: 3 Min. Bactericidal: 3 Min. Fungicidal: 3 Min. Tuberculocidal: 3 Min. Broad-Spectrum Sanitizing: 30 Sec.