Installed the Triangle Samsung virus doctor inverter during room reno and yest is the first night using it.

I noticed the coldness not as great as some non-inverter aircon but the air not as dry as others non-inverter. This is the first aircon which didn't dry up my skin and throat during the night.

The compressor is very silent... maybe still new la

The only irritating thing is the LED screen which displays the temp quite bright during the night. If switch on the virus doctor function, there's blue strip of light on the vent which is even brighter. It look cool during non sleep time but a bit too bright when switch off room lighting for sleeping time.

Will comment more when uses more 

The local Pana Shop quoted me RM1680 1HP Inverter 2015 model with installation. Pana increased the price stating better features and energy efficiency compared to the previous inverter, which they dont keep stock anymore. Suddenly the SenHeng deal looks better...

RKH is the newer model. More energy efficient. I dont think you can buy PKH anymore, unless there are still shops carrying last year's model. I am using RKH now. Bought in January. Very satisfied. If you decide to buy, make sure you get the gifts. I got one set of stainless steel utensils and also RM80 worth of Petronas gift cards.

Maybe with the hot weather nowadays they don't want to lose their margin. I definitely got mine at a lesser price. In KV it should be much cheaper.
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Should be from Panasonic themselves. But strangely they do not promote it a lot. I only know of the utensils promo. Not about the gift cards. You get effectively RM80 off the price since the gift cards are like cash at Petronas stations.
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Daikin ft10L is using r22
For pana even the website did not state it out