Start with the source and the space
Record when the renovation finished, which materials were installed, when odours are strongest and how the ventilation system operates. Review product information where it is available. Strong or continuing emissions should be addressed at the source before any surface treatment is considered.
Measure under consistent conditions
Baseline readings are most useful when the room conditions, equipment position, ventilation state, temperature and humidity are recorded. A single reading can be misleading. Agree the measurement method and timing before comparing pre-treatment and post-treatment results.
Use ventilation as part of the plan
Outdoor air and appropriate mechanical ventilation remain central to indoor air quality management. Check that air paths are open, filters are suitable and installed correctly, and the system is operating as intended. Coating should complement these controls rather than replace them.
Select suitable surfaces
If a nano-coating is appropriate, identify compatible and accessible surfaces with sufficient treated area. Protect sensitive finishes and test an inconspicuous area where needed. Application planning should account for occupancy, drying time and the manufacturer’s technical instructions.
Verify and document
Record the treated areas, product, application date and relevant site conditions. Repeat agreed measurements using the same method. The final report should distinguish observed results from expected performance and identify any remaining sources or ventilation issues.
Check practical advice against official guidance
Singapore renovation guides commonly recommend sustained ventilation, lower-emission materials and indoor air quality testing. These are useful starting points, but numerical thresholds, health advice and product claims should be checked against current NEA guidance and qualified professionals.