The Class A unidirectional laminar flow hood is a kind of air purifying equipment that provides class A unidirectional flow and creates an environment with high local cleanliness. The working principle is that after passing the high-efficiency filter at a certain air speed, the air is evenly pressed by the damping layer so that the clean air flow is sent to the work area in a unidirectional flow and the flow type and cleanliness required by the work protection area are obtained. The class A unidirectional laminar flow hood can be used singly or various hoods can work together. The work area of the class A unidirectional laminar flow hood is an aseptic core area. The operator should open the equipment in class B background area 
according to the defined SOP, and carry out process operation and intervention. These actions should be stipulated according to their risk level to i products. The-operator should avoid contacting core aseptic parts, and use screen or curtain in case of contact.

The class A unidirectional flow transfer trolley is mainly used for aseptic 
transfer, of materials and appliances in the aseptic procedure to realize 
aseptic connection. In case pf inconsistent height of worktables in different procedures, the automatic lifting trolley of the worktable can be selected. The connection doors include automatic lifting type and manual type for selection. According to different aseptic materials to be transferred, vertical unidirectional trolleys or horizontal unidirectional flow trolleys can be selected.

Open Rabs can protect the sterile instruments in its range by forming the air flow barrier between the core area and the background area. The operator can only enter the intervention through the glove box to prevent the risk of direct interference with the sterile open area. The background area of open Rabs is level B, which allows operators to enter. Open Rabs can be equipped with on-line monitoring devices such as wind speed, pressure difference, cleanliness, etc.

The FFU fan filter unit can be used singly for individual control, or various unitscan work together to realize both individual control and group control.100-grades purification is realized locally.

The self-cleaning transfer window can transfer materials and appliances under the protection of the class A environment. The materials and appliances will enter the aseptic area after self-cleaning. It is mostly used for transfer from class C area to class B area. The self-cleaning transfer window is equipped with ultraviolet sterilization lamp, and can also be provided with ozone generator sterilization system according to user requirements.

The negative pressure weighing room is a piece of negative pressure purifying equipment designed for weighing raw and auxiliary materials, activated carbonand and other solids that contain dust in the purifying area. Relative to the background area, the weighing room work area is under negative pressure.The vertical unidirectional air flow in the work area guarantees that the dust of weighed matters falls with the air flow and does not disperse towards the back-ground area, so as to avoid cross contamination , and protect the cleanenvironment and operator safety

The air shower room is a piece of local purifying equipment with good versatility. Generally installed between the clean room and non-clean room, it is a necessary passage for people or cargoes to enter the clean room . The clean air blown from it can eliminate the dust carried by people and cargoes, so as to effectively block or reduce dust from entering the clean area. The two doors at the front and back of the air shower room/cargo shower room adopt electronic interlocking , playing a role of air brake to stop unpurified air from entering the clean area. Th equipment is widely applied in such fields as food , medicine,biological engineering and micro-electronics.

LATM series aseptic transfer cabin is used to transfer materials from low-level clean areas to high-level clean areas of A and B. during the transfer process, hydrogen peroxide is used to sterilize the external surface of the material appliance under the condition of normal temperature gas, which can effectively avoid microbial pollution.

The clean bench is a piece of local purifying equipment with good versatility. According to the air flow type, it falls into two types such as vertical unidirectional flow and horizontal unidirectional flow. The clean bench is widely applied in such industries as medicine,food, scientific research, electronics, national defense, 
precision instruments and meters, etc.

Wuxi HEALU Purification Equipment Co., Ltd. is located on the beautiful shore of Taihu Lake in the south of the Yangtze River. It is a large-scale and highly specialized enterprise integrating the production of air and liquid filters and the manufacturing and installation of purification equipment. The company's products mainly include various specifications and models of primary, medium and high-efficiency air filters, air and liquid filter elements, high-efficiency air supply outlets, self-cleaning transfer windows, laminar flow hoods, negative pressure weighing rooms, air showers, and stainless steel filter housings. The product range is complete, the performance is reliable, the quality is first-class, and the appearance is exquisite. They are widely used in electronics, medicine, food, chemical and other industries. The company covers a total area of 10 mu, with a total production area of 10,000 square meters. Among them, the production area with FFU high-efficiency filter air supply to achieve C-level clean grade is 4,000 square meters. At the same time, it also has several advanced international and leading domestic automated production lines and testing equipment. The annual output of air filters is 200,000 pieces, filter elements 100,000 pieces, and purification equipment 3,000 units.