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HAS indoor-air engineering installation
INDOOR AIR ENGINEERING

INDOOR AIR ENGINEERING

Continuous Air Hygiene & Oxidation Platform Selection

Select the appropriate BES indoor-air platform and evaluate room coverage, installation architecture, operating profile and engineering suitability.

Continuous24 HoursHVAC IntegratedLow OzoneROS Generation
ENGINEERING PLATFORM

Choose the engineering architecture.

BES ENGINEERING APPLICATION

Indoor Air Engineering Simulation

Generated when Export PDF is selected

Project / Input Summary

Platform
HAS
Room dimensions
8 × 6 × 2.8 m
Room area
48.0
Room volume
134.4
Installation / AC type
fan coil
Occupancy
occupied
Relative humidity
normal · 55% RH
Operating schedule
24 hours · 24.0 h/day

Live Engineering Result

Recommended mode
Mode II · 50 m²
User-selected mode
Auto · Mode II
Product quantity
1 preliminary unit
Installed nominal coverage
50.0 m²
Coverage utilization
96.0%
Engineering status
ENGINEERING REVIEW REQUIRED
Installation compatibility
Compatible architecture
Installation recommendation
Integrate at the fan coil treatment point upstream of the fan coil or AHU supply path.

Calculation Summary

Room area
8 × 6 = 48.0

Room volume
48.0 × 2.8 = 134.4

Coverage / airflow utilization
48.0 ÷ 50.0 × 100 = 96.0%

Engineering Recommendation

Use HAS Mode II for the 48 m² room, with the treatment point integrated into the verified return-air path. The selected schedule supports the continuous operating concept.

Engineering Remarks

  • Install the product in accordance with the BES Installation Manual.
  • Verify proper system operation after installation and commissioning.
  • Engineering performance is estimated from the selected operating conditions.
BES Engineering · Preliminary engineering report · Final commissioning required
01 / ENGINEERING INPUTS & LIVE RESULT

Validate the selected indoor-air platform

Enter the room and operating conditions to calculate coverage where verified, review operating mode and installation architecture, and identify data still required.

A. Room geometry
B. Basic operating inputs
Advanced engineering inputs

Use measured site values when they are available. Final commissioning remains required.

Room areaA = Length × Width48 m²
Show Calculation
Engineering inputs
Length 8 m; width 6 m
Formula
A = L × W
Substitution
8 × 6
Calculation
48 m²
Final result
48 m² room area
Room volumeV = Area × Height134.4 m³
Show Calculation
Engineering inputs
Area 48 m²; height 2.8 m
Formula
V = A × H
Substitution
48 × 2.8
Calculation
134.4 m³
Final result
134.4 m³ room volume
Coverage utilizationU = Area ÷ Installed coverage × 10096%
Show Calculation
Engineering inputs
Area 48 m²; installed coverage 50 m²
Formula
U = A ÷ Cinstalled × 100
Substitution
48 ÷ 50 × 100
Calculation
96%
Final result
96% coverage utilization

Preliminary engineering selection only. This workflow does not confirm sterilization, pathogen kill, ozone exposure safety or final commissioning acceptance.

02 / ENGINEERING DIAGRAM

HAS airflow and installation architecture

The BERE blueprint updates product placement, room geometry, airflow direction and engineering annotations from the active platform.

BERE · LIVE ENGINEERING VIEW

HAS airflow and treatment architecture

LIVE MODEL
RETURN AIRHASINDOOR ACSUPPLY AIRHUMIDIFIED OZONE AEROSOL / ROSENGINEERING DISPERSION LEGENDAIRFLOW DIRECTIONHUMIDIFIED OZONE AEROSOLREACTIVE OXYGEN SPECIES (ROS)HIGHMEDIUMLOWRETURN AIRHASINDOOR ACSUPPLY AIRHUMIDIFIED OZONE AEROSOL / ROSAIRFLOWAEROSOLROSHIGHMEDIUMLOW
Room Area48 m²
Room Volume134.4 m³
Recommended ModeMode II · 50 m²
Selected ModeAuto · Mode II
Coverage Utilization96%
Engineering statusENGINEERING REVIEW REQUIRED
03 / ENGINEERING PERFORMANCE

Operating performance at a glance

Review the estimated concentration trend against the selected engineering reference and the cumulative exposure trend across the operating window.

CURRENT, STEADY STATE & SELECTED STANDARD

Estimated Ozone Concentration

0.0000.0280.056StandardPredicted steady state0.0177 ppm0 h12 h24 h36 hResidual ozone (ppm)
Current Time24 h
Show Calculation
Source
Selected daily operating time
Value
24 h/day
Current Concentration0.0177 ppm
Show Calculation
Predicted steady state
0.0180 ppm
Time constant
6.0 h
Current time
24 h
Formula
C(t) = Csteady × (1 − e^(−t/τ))
Calculation
0.0180 × (1 − e^(−24 / 6.0))
Result
0.0177 ppm
Predicted Steady State0.0180 ppm
Show Calculation
Live performance basis
12 mg/h selected-mode output ÷ 12 mg/h Mode II reference
Performance factor
1.000
Unconstrained estimate
0.0180 × 1.000 = 0.0180 ppm
Standard constraint
0.050 × 0.92 = 0.0460 ppm
Formula
Csteady = min(mode-adjusted estimate, standard × 0.92)
Result
0.0180 ppm
Selected Standard0.050 ppm
Show Calculation
Selected reference
BES Recommendation
Reference line
0.050 ppm
Use
Visual engineering comparison; commissioning verification remains required
Safety Margin64%
Show Calculation
Formula
Margin = (Standard − Csteady) ÷ Standard × 100
Calculation
(0.050 − 0.0180) ÷ 0.050 × 100
Result
64%
StatusWithin Standard ✓
Show Calculation
Comparison
0.0180 ppm < 0.050 ppm
Interpretation
Predicted steady state remains below the selected reference
Verification
Confirm with calibrated on-site measurement during commissioning
ACCUMULATED CONCENTRATION × TIME

Cumulative CT

0122320 ppm·min0 h12 h24 hCT (ppm·min)
Current Time24 h
Show Calculation
Source
Selected daily operating time
Value
24 h/day
Current CT20 ppm·min
Show Calculation
Formula
CT(t) = ∫C(t)dt
Analytical method
CT(t) = 60 × Csteady × [t − τ(1 − e^(−t/τ))]
Calculation
60 × 0.0180 × [24 − 6.0 × (1 − e^(−24 / 6.0))]
Result
20 ppm·min
Projected CT (24 h)20 ppm·min
Show Calculation
Formula
CT(24) = 60 × Csteady × [24 − τ(1 − e^(−24/τ))]
Calculation
60 × 0.0180 × [24 − 6.0 × (1 − e^(−24 / 6.0))]
Result
20 ppm·min
ReferenceEngineering Calculation
Show Calculation
Method
Analytical integral of the displayed concentration curve
Units
Concentration (ppm) × time (minutes)
Acceptance
Engineering trend only; no PASS / FAIL criterion is applied

Performance curves are presentation estimates based on the selected operating duty and do not modify product sizing, recommendation logic or commissioning acceptance.

04 / ENGINEERING SUMMARY

Decision-ready engineering basis

Five essential checks summarize the active preliminary selection without repeating the detailed input and recommendation panels.

Product SelectedHAS
Coverage50 m²
Coverage Utilization96%
Installation CompatibilityCompatible architecture
Relative Humidity55% RH
05 / ENGINEERING REMARKS

Engineering Remarks

  • Install the product in accordance with the BES Installation Manual.
  • Verify proper system operation after installation and commissioning.
  • Engineering performance is estimated from the selected operating conditions.
06 / EXPORT PDF

Export the current engineering configuration

Generate a print-ready BES report containing the live project inputs, diagram, performance graphs, calculation summary, recommendation and engineering remarks.

07 / PRODUCT RECOMMENDATION

HAS

A preliminary selection based on the verified platform data and current site inputs.

Recommended platform
HAS
Recommended mode
Mode II · 50 m² nominal coverage
Preliminary quantity
1 preliminary unit
Installation method
Integrate at the fan coil treatment point upstream of the fan coil or AHU supply path.
Operating schedule
24.0 h/day
KEY ENGINEERING REASON

Use HAS Mode II for the 48 m² room, with the treatment point integrated into the verified return-air path. The selected schedule supports the continuous operating concept.

Limitations / data still required

  • Confirm measured airflow and return-path distribution.
  • Verify current manual, water quality, occupied-zone conditions and local ozone requirements.
View Recommended Product
08 / ENGINEERING PRINCIPLES

HAS calculation and airflow basis

Detailed engineering interpretation follows the platform’s verified architecture rather than forcing every product into one generic formula.

ROOM AREAA = Length × Width

Match the room area to the verified Mode I–IV table.

COVERAGE UTILIZATIONU = Design Area ÷ Installed Nominal Coverage

Utilization is informational and never proves final performance.

CONTINUOUS PATHReturn → HAS → Fan Coil / AHU → Supply

Commission the complete recirculation path.

HAS AIRFLOW ARCHITECTURE
RETURN AIRHAS INJECTION / TREATMENTFAN COIL / AHUSUPPLY AIR → ROOM → RETURN

Integrate the treatment point with a verified HVAC or fan-coil return path.

01

Confirm return and supply airflow direction.

02

Install the HAS treatment point at the fan-coil or AHU return path.

03

Use RO, DI or distilled water as specified.

04

Verify distribution, humidity and occupied-zone conditions during commissioning.

This is an engineering screening workflow, not a clinical claim. It does not confirm sterilization, pathogen kill, log reduction or safe ozone exposure.