Enter fogger details
Example data table
| Flow rate | Nozzles | Run time | Duty | Efficiency | Dilution | Total output | Concentrate | Water |
|---|---|---|---|---|---|---|---|---|
| 600 mL/min | 1 | 30 min | 100% | 90% | 1 : 50 | 16.200 L | 0.318 L | 15.882 L |
| 0.8 L/min | 2 | 0.5 hr | 80% | 85% | 1 : 100 | 32.640 L | 0.323 L | 32.317 L |
Formula used
- Flow conversion: Convert the selected unit to mL/min.
- Effective time (min): Run time × (Duty cycle ÷ 100).
- Theoretical output (mL): Flow × Effective time × Nozzles.
- Adjusted output (mL): Theoretical output × (Efficiency ÷ 100).
- Total solution (L): Adjusted output ÷ 1000.
- Dilution split (L): Concentrate = Total × (Conc parts ÷ Total parts). Water = Total × (Water parts ÷ Total parts).
- Coverage (m²): Total solution (L) ÷ Application rate (L/m²), when provided.
- Treated volume (m³): Coverage (m²) × Space height (m), when provided.
ULV fogger output planning on active jobsites
1) Why output planning matters
Ultra‑low volume fogging is often used during commissioning, remediation, and temporary sanitation work. The job can fail if the crew runs short of mixed solution, or if the application rate is exceeded. A repeat pass typically increases labor time, access coordination, and disruption to other trades.
2) Inputs that drive the total liters
The calculator combines nozzle flow rate, runtime, number of nozzles, duty cycle, and efficiency. Duty cycle captures pulsing and pauses, while efficiency reflects drift, filter restriction, and tank residuals. For example, moving from 100% to 80% duty immediately reduces delivered volume by 20%. Adding a second nozzle doubles theoretical output, so check symmetry and pressure balance. Output rate is also shown in liters per hour, useful for scheduling tank refills.
3) Coverage and treated volume indicators
When you enter an application rate, the tool estimates the maximum coverage area in square meters. Adding height converts that coverage to a treated volume in cubic meters, which is useful for tall rooms, stair cores, and mechanical spaces where air volume matters. Treat coverage as an upper bound when obstacles, strong ventilation, or open doors are present.
4) Dilution control for consistent performance
Mixing is managed using “parts” so crews can scale safely from a small handheld tank to a larger cart. The calculator reports both concentrate liters and water liters, reducing on‑site math errors. Always verify product label constraints, contact time requirements, and compatible surfaces. Keep measuring jugs dedicated to each chemical to prevent cross‑contamination.
5) Field verification and reporting
Use measured output checks during setup: run the unit for a timed interval and confirm collected volume. Record nozzle condition, battery state, and ambient airflow, then adjust efficiency if results differ. Export CSV or PDF to attach to daily reports, QA logs, and client close‑out documentation. Consistent records make re‑treatments faster and support audit readiness on regulated sites.
FAQs
1) What does duty cycle mean for a fogger?
Duty cycle is the percent of time the unit actually sprays during the runtime. Use it for pulsing, repositioning, or planned pauses so estimated output matches real field behavior.
2) How should I choose an efficiency value?
Start with 85–95% for well‑maintained equipment. Reduce it if you expect drift, clogged strainers, long hoses, or significant leftover in the tank after shutdown.
3) Can I use total output to size chemical purchases?
Yes. The calculator splits total solution into concentrate and water using your dilution ratio. Multiply by the number of treatment zones and add contingency for priming and setup losses.
4) What application rate should I enter?
Use the rate required by the product label, method statement, or site specification. If you do not have a defined rate, leave it blank and use the tool only for output and mixing.
5) Why does coverage change when I change dilution parts?
Coverage is based on total solution volume, not concentrate strength. Changing dilution affects concentrate and water volumes, but coverage depends primarily on delivered solution and the chosen application rate.
6) How do I validate the flow rate input?
Perform a timed capture test. Run the unit for a known duration, measure collected liquid, and convert to a per‑minute rate. Update the flow rate field to match the measured output.
7) What is the best way to document results?
After calculating, download CSV for spreadsheets or PDF for job folders. Store the file with the zone name, date, operator, and product batch information for traceable reporting.