Ozone Deodorization Sizing, Time, and Lockout
Sizes an ozone shock deodorization by treatable volume, with the safety lockout up front.
Example
You enter
- Volume to deodorize (ft³ = area x ceiling height) 8000
- Generator rated treatable volume (ft³) 2000
- Shock duration (hours) 24
- Minimum ventilate-before-reentry (minutes) 120
You get
- Ozone generators 4
- Lockout required Yes
Checked against published worked examples from: ANSI/IICRC S700 deodorization.
Details, formula, and sources
ScopeSizes an ozone shock-deodorization for smoke odor in an unoccupied structure by treatable volume against each unit's rated volume, with the safety lockout front and center: the generators needed, the shock duration, and the unoccupied-sealed-aerate sequence. Ozone is a strong oxidizer and respiratory toxin; the space must be sealed and aired below the 0.1 ppm OSHA limit before reentry, and a hydroxyl generator is the occupied-space alternative. Sizes equipment; not authority to run ozone occupied.
Formula or tablegenerators_needed = ceil(structure_volume_ft3 / rated_volume_per_unit); lockout_required = true (always); reentry requires ventilate >= aeration_min and ozone < 0.1 ppm (OSHA).
Source and editionVolume-based ozone deodorization sizing, by name; ANSI/IICRC S700, and the OSHA 0.1 ppm ozone permissible limit.
Free accessThe volume-based sizing is public arithmetic; the deodorization method is named in the published IICRC S700 and the 0.1 ppm limit in the public OSHA standard.
What governsEstimate. AHJ and licensed professional govern.
API field namesstructure_volume_ft3, rated_volume_per_unit, treatment_time_hr, aeration_min, generators_needed, lockout_required
- Rated treatable volume each generator's rated volume is the manufacturer's figure for the odor severity and dwellmanufacturer rating
- Lockout is a precondition the unoccupied-sealed-aerate-below-0.1-ppm sequence is constant and does not scale with the jobOSHA / ANSI/IICRC S700