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Poultry humidifier (半天露)
1. Convenient, easy to use, controllable with timer.
2. Cheaper, around RM300-500 per nos.
3. Bird shit may deposit in the fan. However, this problem can be solved by covering it with a metal deck sheet.
4. A bit noisy.
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Mist-cooling-system humidifier (喷雾)
1. More expensive, around RM2000
2. Spraying outlet opening tends to get choked.
3. Not easy to control the temperature, need the aid of hygrostat.
4. Need to have duty and standby units, 2 nos, in case the duty unit broken down.
5. Incur higher BH maintenance cost.