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Applications · IAQ & renovation contractors

One treatment system for IAQ & renovation contractors.

Post-renovation projects pass or fail on a closed-room re-test. We supply the complete protocol — thermal extraction, source scavenging and a photocatalyst finish — plus odor clearance, aftercare gels and the HVLP and steam hardware to apply it the same way on every job.

Request samplesSee the workflow
Extract, scavenge, coat
3-stage
Source scavenger on board surfaces
15–25 ml/m²
Sprayable surface vs. floor area
2.4–2.8×
Closed-room re-test window
24–48 h

01The challenge

Why projects fail the re-test

  1. 01

    Most of the load is still in the board

    Free formaldehyde gas is under 5% of the indoor load. 70–80% is bound in urea-formaldehyde resin and keeps releasing for 3–15 years, so ventilation and air purifiers alone cannot bring a new fit-out down for good.

  2. 02

    Bids on floor area run short

    Walls, ceilings and cabinets add up to 2.4–2.8 times the floor area in a typical flat or office. Estimate litres per surface zone and dosage, not per square metre of floor.

  3. 03

    Readings pass, the smell does not

    Fresh paint and carpet backing add TVOC and 4-PCH odor that clients notice even when formaldehyde is within the limit. Odor clearance belongs in the same visit.

02Recommended formulations

8 formulations, each with a job.

Open any product for its full technical data sheet, or add it to your inquiry list and request samples in one go.

Browse the full catalog

Stage 1 · Extraction

Stage 2 · Source scavenger

Stage 2 · Paint & walls

Stage 2 · Carpet & 4-PCH

Stage 3 · Photocatalyst

Odor clearance

Aftercare

Crew equipment

03Workflow

The job, step by step

  1. 01

    Measure the baseline

    Close doors and windows for 12 hours, then sample at breathing height (0.8–1.5 m) in the centre of each room. Record the values the client will be accepted against.

  2. 02

    Thermal extraction

    Run the fumigation fluid through a steam machine on dense wardrobes, upholstered sofas, mattresses and heavy drapes at 20–30 ml/m² to pull deep-seated formaldehyde out in one cycle. Keep heat away from PVC edge banding and electronics.

  3. 03

    Source scavenging

    Spray board edges, cabinet interiors and subfloors at 15–25 ml/m² with a 0.8–1.0 mm HVLP gun. Treat fresh paint and carpet with the TVOC and 4-PCH formulations.

  4. 04

    Photocatalyst finish

    Once surfaces are dry (2–4 h), coat light-exposed walls and ceilings at 8–12 ml/m² with a 0.5–0.8 mm gun held 30–40 cm away. The TiO₂ film keeps working after handover.

  5. 05

    Clear odor, re-test, leave aftercare

    ULV-fog the room volume and mist soft furnishings, re-test after 24–48 hours under the baseline conditions, and leave ClO₂ gel jars in wardrobes as a maintenance add-on.

04By the numbers

The data behind the plan.

Indoor emission sources in a furnished room and the formulation used for each12345
  1. 1
    Board edges & cabinet interiorsFormaldehyde

    Formaldehyde Remover · Wood & MDF Sealer

  2. 2
    Subfloor & flooringFormaldehyde

    Formaldehyde Remover

  3. 3
    Fresh paint & wall coatingsTVOC

    TVOC Eliminator · Nano Photocatalyst Spray

  4. 4
    Carpet backingTVOC · 4-PCH odor

    Carpet & Paint VOC Neutralizer

  5. 5
    Curtains & upholsteryAbsorbed HCHO · odor

    HCHO Fumigation Solution · Odor Eliminator

Typical emission sources in a renovated room. Porous zones — unsealed board edges, cabinet backs, drawer cavities and subfloors — carry most of the formaldehyde load, so they are treated first.
  1. Free airborne gas< 5%of the total load

    Releases for hours to daysVentilate, then Odor Eliminator

  2. Shallow adsorbed15–25%of the total load

    Releases for 1–6 monthsTreat with High-Temperature Fumigation Solution

  3. Bound in UF resin70–80%of the total load

    Releases for 3–15 yearsTreat with Formaldehyde Remover + Nano Photocatalyst

Where indoor formaldehyde sits and how long it keeps releasing: share of the total load and release window for each state. Source: post-renovation remediation guide.

05Quantity estimate

Plan quantities before you quote.

Pick a formulation and the area to treat. Estimates use the coverage published in each technical data sheet.

Published coverage: 20 – 30 ml/m² (diluted or direct per steamer specification)

Application passes

Use 2–3 passes for raw high-density board or heavy TVOC loads.

Estimated quantity

6.0–9.0L

20–30 ml/m² × 300 m² × 1 pass

Suggested packs2 × 5 L jerrycans
Quote this quantity

Estimate from the published coverage range. Real consumption depends on substrate porosity, nozzle size and baseline readings — our engineers confirm it with your quote.

06Questions

IAQ contractors: common questions.

Ask an engineer
01How much Formaldehyde Remover does a 100 m² apartment need?

A 100 m² flat typically has 180–250 m² of treatable panel and cabinet surface (shelves, drawer backs, bed frames). At 20 ml/m² that is roughly 3.5–5.0 L. Use the quantity estimator on this page for the other stages.

02In what order should the products be applied?

Thermal extraction and source scavenging first, directly on raw wood, cabinet interiors and joints. When those surfaces are dry (2–4 hours), apply the photocatalyst to light-exposed walls and ceilings, then finish with odor clearance.

03When can we re-test the rooms?

After 24–48 hours. Repeat the closed-room measurement exactly as for the baseline — 12 hours closed, sampling at 0.8–1.5 m in the centre of the room — so the two readings are comparable.

04What equipment does a crew need?

The Pro HVLP & Steam Application Kit holds 0.5 mm and 0.8 mm HVLP guns, a 2600 W steamer, hoses and PPE in one flight case, in 110 V or 220–240 V versions. The guns run from an oil-free compressor at 0.25 MPa.

Keep reading

Guides, lines & other industries.

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Factory-direct supply

Test it on your own substrates.

Tell us the rooms, materials and volumes involved. Our Botou engineering desk replies with a matched set of formulations, dosages and documents.

Request samplesOEM & private label