7
Timer Functions
Follow the guidelines below for shock treating rooms with the A-3500:
• Keep in mind, ozone half-life is 30 minutes.
• If the smell of ozone is too strong when you return, be sure to open
windows to air out the building.
• The A-3500 has a timer function option that can be set at 15
minutes - 4 hours.
• Turn the timer knob clockwise to set the unit’s timer.
• Keep in mind, this unit does not have a repeat timer option.
Room Size
Estimated Time
Large Sized Room (< 3500 sq ft)
3 to 4 hours
Medium Sized Room (< 2500 sq ft)
1 to 2 hours
Small Room or Closet (< 1500 sq ft)
30 minutes to 1 hour
Summary of Contents for A-3500
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