Optimus 100 Litres Desert Air Cooler for home | Large & Easy Clean Ice Chamber | High Density Honeycomb Pads | Auto-Fill & Drain | Everlast Pump | Humidity Control

This product is robost design and good air throw..nice design and all features..auto water fill and auto water drain out ..cooling so fast ..low noise..easy to move...only first 3 to 4 hrs you need to run and drain all water when start at initially to remove bad smell of packing box...and honey comb small particle and as water turn yellow color due to honey comb material..after that second day you can fill fresh water upto 75%(75ltr) so it is long last for 2 days for me...it is useful for big hall or while flat 2 bhk for cooling all room ..should be placed behind window outside in gallery so fresh air suction can taken and cool air comes thru window grill net... if you see the impurities in water then again you can drain out frim botton drain plug removed and refit easily....pump and swing mode is useful to cover all room area ...mosquito net is good features to avoid enter mosquito in cooler inside to give fresh hygienic air flow...ice input chamber at top and big in size very good you can put ice cube in tray to improve extra cooling....at backside left side connector for auto water fill float system if you continue connect pipe there..and right side one connector provide L shape by company so you should remove plug and connect drain L shape there..again beside this one water fill provision given for manually water filling.. A knob given for auto drain by pump ..when draing you should stop cooler only pump to be run on that mode ..after draining..again switch to high or low mode for pump depends upon wheather condition..for humid low mode and for dry high mode... Power on/ off button given from front side extreme left..then air flow high,medium,low given as per requirement and right extreme pump mode and pump swinging mode given for better cooling area cool... Overall this cooler is best one among all cooler competitor...its body plastic good hard acrylic..also from front side flap collapsible given to avoid mosquito enter thru it if cooler is not in service we can close it ...water indicator is easy to watch from front side.. I tremendous satisfied after its trial work..and recommend to buy anyone who need ...Thanks

Okay, having used a Crompton Greeve’s cooler for over 20 years, I knew I was gonna upgrade to Crompton cooler again. Visited Crompton website and zeroed in at the best product that they offer - Optimus 100 litre. And such large capacity cooler served my interests as well given I have a large living and dining room. I looked up for the cooler on Amazon and found sellers selling it at as low as ₹12000. However, none of them delivered the product at my address. And the one that could deliver the product, offered it at a sticker price of ₹15,990. I had no option but to buy from them. The good thing is that the seller delivered the product within 7 days given the seller and I are at the opposite corner of the country. Amazing courier service. Now the 100 litre capacity can last the entire day with low and medium fan speed. You won’t expect the cooler to chill the air like an air conditioner does. That’s not the purpose of air cooler. But add ice to the ice tray and it indeed chills the air fairly well. The noise level of fan is also well in control over many coolers out there. Again, don’t expect it to be as quite as air conditioner. It’s the reason why air conditioners are more than twice the cost of air cooler. The only minor gripe I have against the cooler is the noise of dripping water which, I guess, could be managed with better design. I have attached the video but it doesn’t give justice to how low the noise levels are. The fan noise is seriously low at low fan speed which is enough for my entire living and dining room. The noise of dripping water is a bit annoying. I have four star because of the sticker price and few imperfections. But I’d highly recommend this product for its reliability and build quality. Oh! And you’d love the auto-drain function which is so easy to use. It is a smart design. I wish the designers had applied such smart design to control the noise of dripping water as well.