Requirements on Minimum Energy Performance Standard  and Energy 
Efficiency Rating  Labelling and Inspection of Dehumidifiers  
Subject：Requirements on Minimum Energy Performance Standard and Energy 
Efficiency Rating Labelling and Inspection of Dehumidifiers  
Basis： Paragraph 4, Article 14 of the Energy Management Act  
Announcement ： 
1. Domain ：The dehumidifiers denoted in this announcement are those meeting the 
definition of dehumidifiers with rated electric power below 1000 W, defined in CNS 
12492, and promulgated by the Bureau of Standards, Metrology and Inspection 
(BSMI) of the Ministry of Economic Affairs (MOEA) as products requiring inspection 
before marketing.  
2. Test Method ：CNS 12492  
3. Minimum Energy Performance S tandard (MEPS) ：The tested value of energy factor  
(EF) shall not be less than the standard value specified in the Table 1 (minimum 
energy performance standard requirements for dehumidifiers) and be more than 95% 
of the marked value on  products.  
4. Labelling scheme for Energy Efficiency Rating  
(1) Displayed label  minimum  size：140mm (long)× 100mm(width), its samples and 
specifications as follow ： 
   
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(2) Content of energy e fficiency rating label  
(i) Product name (dehumidifier); 
(ii) Product model number;  
(iii) Rated capacity (L/day ); 
(iv) Energy factor (L/kWh) ; 
(v) Energy efficiency rating; 
The products shall be classified for energy efficiency rating based on the energy 
factor value shown in the following Table 2 and shall be marked onto the energy 
efficiency Labelling.  
Annual electricity consumption (kWh), which is calculated by the rated capacity 
(L/day)/labelled energy factor (L/kWh) X 22.5 days. Annual electricity 
consumption value shall be rounded to integer;   
(vi) The year and announcement number of the Announcement containing the 
Criteria for Energy Efficiency Rating of Dehumidifiers used for this rating 
determination;  
(vii) Registration number for this rating ; 
(viii) Other text as designated by the Central Competent Authorit y. 
(3) Display or post the label  
While displaying or marketing the products, the dealer shall display or post the energy efficiency rating label on the front of the products, and shall not hide, destroy or adopt other means to render the label not recognizable by the consumers. While 
manufacturing or importing the products, the dealer shall display or attach the energy 
efficiency label in/on the product instruction/manual, or place the label in a prominent 
area on the front of the products.  
(4) Ener gy efficiency rating  
After the aforementioned application has been approved by the Central Competent  
 2 Authority, the dealer may download the energy efficiency rating label from the 
management s ystem and start using the label.  
(5) Compliance inspection schem e 
In principle, the number of products first sampled and tested shall be decided based on 
the sales volume of the designated model number of the previous year, and one 
sample shall be tested out of 5,000 units of such product model sold. If less than 5,000  
units were sold for that model number in the prior year, one sample shall be  tested. 
Nonetheless, the Central Competent Authority may change the sampling ratio based 
on actual needs.  
 
Table 1 Minimum energy performance standard requirements for dehumidifiers 
Rated Capacity Cr 
(L/day ) MEPS  for EF  
(L/kWh)  
Cr ≦ 6   1.10 
6 < Cr ≤ 12   1.20 
Cr > 12   1.40 
Note：  
1. The testing and calculation of EF value shall be conducted according to 
CNS12492 "Dehumidifier". The calculated EF value is rounded off to two decimal places.  
2. The tested EF value shall be not less than the standard value shown on the above 
table and be 95% or more of the product mark ed value.  
3. The minimum energy p erformance s tandard requirements are only applicable to 
dehumidifiers with electric power input not higher than 1000W.  
 Table 2 Energy efficiency rating s tandard requirements for dehumidifiers 
Rating Standard  
 
Rated Capacity  
Cr (L/day)  Energy Factor EF (L/kWh)  
Class 5  Class 4  Class 3  Class 2  Class 1  
Cr ≦ 6 1.10 ≤  EF 
<1.34  1.34 ≤  EF 
<1.58 1.58 ≤  EF 
<1.83  1.83 ≤  EF 
<2.07  EF ≥  2.07  
6 < Cr ≤  12 1.20 ≤ EF 
<1.50 1.50 ≤ EF 
<1.80 1.80 ≤ EF 
<2.10 2.10 ≤ EF 
<2.40 EF ≥  2.40  
Cr > 12  1.40 ≤  EF 
<1.68 1.68 ≤  EF 
<1.96 1.96 ≤  EF 
<2.24 2.24 ≤  EF 
<2.52 EF ≥  2.52  
 
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