# AirDiffuser

> HVAC air ceiling diffuser selection and calculation tool. (iPhone/iPad app by Technical Data Service Co.,Ltd..)

- Source: https://appshunter.io/ios/app/airdiffuser/id441746795 (this page in markdown: same URL + `.md`)
- Developer: [Technical Data Service Co.,Ltd.](https://appshunter.io/developer/441746798)
- Category: Productivity, Business
- Price: $2.99
- Rating: 1.00/5 from 1 App Store ratings
- Age rating: 4+
- Requires: iOS 9.0 · 4 MB
- Languages: American English, Japanese
- Released: 2011-06-09
- Data updated: 2026-08-24
- Monetization: paid
- User reviews in markdown: https://appshunter.io/ios/app/airdiffuser/id441746795/reviews.md

## What is AirDiffuser?

'AirDiffuser' is an application program that can select air ceiling diffuser in air conditioning facilities quickly, and easily.
It is an easy operation only of the choice of the apparatus to be examined from the list, the input of the amount of the wind, and doing the calculation button the tap.
It is possible to calculate to examine the velocity of the wind to select the size of apparatus and to examine the amount of the wind.

Please use it for the reference when air ceiling diffuser is selected when the blueprint and the working drawing, etc. are made.
It is possible to take an active part by various scenes like the site and meeting, etc.

[Feature]
- The size of apparatus can be easily selected only by inputting the amount of the wind and pushing the calculation button.

- It corresponds to various apparatuses.
  (Round Diffuser,Square  Diffuser,BL,CL,VHS,HS,OAG,EAG,Smoke Damper)

- The aperture rate of default can be changed to an arbitrary aperture rate.

- The velocity of the wind of default can be changed to an arbitrary velocity of the wind.

- The velocity of the wind can be examined by fixing by an arbitrary size of apparatus.

- The amount of the wind can be reversely calculated by fixing an arbitrary size of apparatus and the velocity of the wind.

- When size L is selected, BL and CL round length and are computable.

- This application is calculated by metric system. 

- Please see the support site in detail.

## Key features

- Easy apparatus size selection by wind amount input
- Supports various diffuser types (Round, Square, BL, CL, etc.)
- Adjustable aperture rate and wind velocity
- Reverse calculation of wind amount
- Metric system calculations
- Calculations for BL and CL round length


## Frequently asked questions about AirDiffuser

### How does AirDiffuser help with HVAC system design?

AirDiffuser allows users to quickly select air ceiling diffusers by inputting the desired wind amount. It then calculates the necessary apparatus size and wind velocity, aiding in the creation of blueprints and working drawings.

### What types of diffusers does AirDiffuser support?

AirDiffuser supports a wide range of apparatuses including Round Diffuser, Square Diffuser, BL, CL, VHS, HS, OAG, and EAG, as well as Smoke Dampers.

### Can I customize settings in AirDiffuser?

Yes, you can change the default aperture rate to an arbitrary value and also set the default wind velocity to your preferred arbitrary value.

### Does AirDiffuser work offline?

The provided data does not specify offline functionality. However, as a calculation tool, it is likely designed to function without a constant internet connection.

### What is the price of AirDiffuser?

AirDiffuser is a paid application priced at $2.99.

### On which devices can I use AirDiffuser?

AirDiffuser is supported on iPhone and iPod devices.

### How often is AirDiffuser updated?

The application was last updated on May 17, 2016, with version 1.0.1. This indicates infrequent updates.

### Does AirDiffuser have ads?

No, AirDiffuser does not contain advertisements.

## Version history (last 2 releases)

### 1.0.1 — 2016-05-17

This update from Apple will improve the functionality of this app. No new features are included.

- iOS9 Support
- Bug fixed

### 1.0 — 2011-06-09

No release notes.

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## More apps by Technical Data Service Co.,Ltd.

- [DuctSizeCalc](https://appshunter.io/ios/app/ductsizecalc/id458032972)

All apps by Technical Data Service Co.,Ltd.: https://appshunter.io/developer/441746798

## Related topics

[technical data](https://appshunter.io/ios/topics/technical-data)

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*Data collected daily from the US App Store and indexed by [AppsHunter](https://appshunter.io/). User reviews are verbatim App Store reviews. Ratings, prices and chart positions refresh continuously; this snapshot is from 2026-08-24.*