| Part | RoHS | Manufacturer | Thermal Device Type | Body Material | Construction | Airflow | Noise | Approvals (V) | Minimum Operating Temperature | Life Expectancy | Height | Width | Diameter | Speed | Bearing Type | Additional Features | Packing Method | Pressure | Weight | Voltage (Rated) | Length | Power (Rated) | Current (Rated) | Maximum Operating Temperature |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
51.31 cfm (87.176 m³/h) |
45.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
3.622 in (92 mm) |
0.591 in (15 mm) |
3300 rpm |
Ball |
Approvals: VDE |
3.96 mmH₂O (38.834 pa) |
68 g |
12 V |
3.622 in (92 mm) |
5.4 W |
450 mA |
60 °C (140 °F) |
||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.34 cfm (252.031 m³/h) |
55 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.29 mmH₂O (149.944 pa) |
320 g |
12 V |
4.724 in (120 mm) |
10.8 W |
900 mA |
70 °C (158 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
190.481 cfm (323.629 m³/h) |
59.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4100 rpm |
Ball |
Approvals: VDE |
17.635 mmH₂O (172.94 pa) |
330 g |
12 V |
4.724 in (120 mm) |
19.2 W |
1.6 A |
70 °C (158 °F) |
||||
|
Delta Electronics |
DC Blower |
Plastic |
Axial |
1.34 cfm (2.277 m³/h) |
29 dB |
CE; CSA; UL |
-10 °C (14 °F) |
30,000 h |
0.394 in (10 mm) |
1.378 in (35 mm) |
5500 rpm |
Ball |
Approvals: VDE |
4.14 mmH₂O (40.6 pa) |
11 g |
12 V |
1.378 in (35 mm) |
720 mW |
60 mA |
70 °C (158 °F) |
||||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.34 cfm (252.031 m³/h) |
51 dB |
CE; CSA; UL |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.29 mmH₂O (149.944 pa) |
320 g |
12 V |
4.724 in (120 mm) |
8.16 W |
680 mA |
|||||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.34 cfm (252.031 m³/h) |
55 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.29 mmH₂O (149.944 pa) |
320 g |
24 V |
4.724 in (120 mm) |
13.68 W |
570 mA |
70 °C (158 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
113.11 cfm (192.175 m³/h) |
49.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1 in (25.4 mm) |
3400 rpm |
Ball |
Approvals: VDE |
10.92 mmH₂O (107.089 pa) |
198 g |
12 V |
4.724 in (120 mm) |
9.6 W |
800 mA |
60 °C (140 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
252.85 cfm (429.595 m³/h) |
70.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
1.496 in (38 mm) |
4.724 in (120 mm) |
5500 rpm |
Ball |
Approvals: VDE |
35.877 mmH₂O (351.833 pa) |
380 g |
24 V |
4.724 in (120 mm) |
57.6 W |
2.4 A |
60 °C (140 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
190.481 cfm (323.629 m³/h) |
59.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4100 rpm |
Ball |
Approvals: VDE |
17.635 mmH₂O (172.94 pa) |
330 g |
24 V |
4.724 in (120 mm) |
18 W |
750 mA |
70 °C (158 °F) |
||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
129.96 cfm (220.803 m³/h) |
51 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
3200 rpm |
Ball |
Approvals: VDE |
10.7 mmH₂O (104.931 pa) |
256 g |
12 V |
4.724 in (120 mm) |
10.8 W |
900 mA |
60 °C (140 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
190.481 cfm (323.629 m³/h) |
59.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4100 rpm |
Ball |
Approvals: VDE |
17.635 mmH₂O (172.94 pa) |
330 g |
12 V |
4.724 in (120 mm) |
19.2 W |
1.6 A |
70 °C (158 °F) |
||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.34 cfm (252.031 m³/h) |
55 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.29 mmH₂O (149.944 pa) |
320 g |
24 V |
4.724 in (120 mm) |
13.68 W |
570 mA |
70 °C (158 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
129.96 cfm (220.803 m³/h) |
51 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
3200 rpm |
Ball |
Approvals: VDE |
10.7 mmH₂O (104.931 pa) |
256 g |
12 V |
4.724 in (120 mm) |
10.8 W |
900 mA |
60 °C (140 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.356 cfm (252.058 m³/h) |
55 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.296 mmH₂O (150.003 pa) |
330 g |
24 V |
4.724 in (120 mm) |
13.68 W |
570 mA |
70 °C (158 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
148.34 cfm (252.031 m³/h) |
55 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
4000 rpm |
Ball |
Approvals: VDE |
15.29 mmH₂O (149.944 pa) |
320 g |
12 V |
4.724 in (120 mm) |
10.8 W |
900 mA |
70 °C (158 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
13.45 cfm (22.852 m³/h) |
32 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
2.362 in (60 mm) |
0.591 in (15 mm) |
3500 rpm |
Ball |
Approvals: VDE |
3.01 mmH₂O (29.518 pa) |
44 g |
24 V |
2.362 in (60 mm) |
2.4 W |
100 mA |
70 °C (158 °F) |
||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
32.179 cfm (54.672 m³/h) |
68.5 dB |
CE; CUL; UL |
-10 °C (14 °F) |
70,000 h |
2.205 in (56 mm) |
1.575 in (40 mm) |
16000 rpm |
Ball |
Approvals: VDE |
66.824 mmH₂O (655.32 pa) |
83 g |
12 V |
1.575 in (40 mm) |
21.84 W |
1.82 A |
60 °C (140 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
8.154 cfm (13.854 m³/h) |
35.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
1.575 in (40 mm) |
0.394 in (10 mm) |
7000 rpm |
Ball |
Approvals: VDE |
4.831 mmH₂O (47.376 pa) |
14 g |
5 V |
1.575 in (40 mm) |
700 mW |
140 mA |
70 °C (158 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
68.6 cfm (116.552 m³/h) |
65.5 dB |
CE; CUL; UL |
-10 °C (14 °F) |
70,000 h |
1.496 in (38 mm) |
2.362 in (60 mm) |
14700 rpm |
Ball |
Approvals: TUV |
73.3 mmH₂O (718.827 pa) |
130 g |
48 V |
2.362 in (60 mm) |
19.68 W |
410 mA |
70 °C (158 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
45.45 cfm (77.22 m³/h) |
48 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
2.756 in (70 mm) |
0.591 in (15 mm) |
5200 rpm |
Ball |
Approvals: VDE |
7.787 mmH₂O (76.364 pa) |
52.5 g |
12 V |
2.756 in (70 mm) |
6.6 W |
550 mA |
60 °C (140 °F) |
||||
|
Ebm-papst Mulfingen & Kg |
AC Fan |
Sheet Steel |
Axial |
CCC; CE |
-25 °C (-13 °F) |
2.5 in (63.5 mm) |
7.756 in (197 mm) |
2900 rpm |
Ball |
Approvals: EAC; EN |
15.29 mmH₂O (149.944 pa) |
1.4 kg |
230 V |
78 W |
340 mA |
65 °C (149 °F) |
||||||||
|
Ebm-papst Mulfingen & Kg |
AC Fan |
Glass Filled Polyamide 6 |
Axial |
CCC; CE |
2.874 in (73 mm) |
8.717 in (221.4 mm) |
2700 rpm |
Ball |
Approvals: CSA; EN; UL |
1.3 kg |
230 V |
100 W |
430 mA |
40 °C (104 °F) |
||||||||||
|
Ebm-papst Mulfingen & Kg |
AC Fan |
Glass Filled Polyamide 6 |
Axial |
CCC; CE |
-25 °C (-13 °F) |
2.874 in (73 mm) |
8.717 in (221.4 mm) |
2700 rpm |
Ball |
Approvals: CSA; EAC; EN; UL |
1.3 kg |
230 V |
90 W |
400 mA |
40 °C (104 °F) |
|||||||||
|
|
Comair Rotron |
AC Fan |
Plastic |
Axial |
90 cfm (152.911 m³/h) |
50 dB |
CE; CUL; UL |
-10 °C (14 °F) |
55,000 h |
4.126 in (104.8 mm) |
1.496 in (38 mm) |
2500 rpm |
Ball |
5.588 mmH₂O (54.8 pa) |
610 g |
115 V |
4.126 in (104.8 mm) |
23 W |
300 mA |
70 °C (158 °F) |
||||
|
|
Sanyo Denki America |
DC Fan |
Plastic |
Axial |
171 cfm (290.531 m³/h) |
58 dB |
UL |
-20 °C (-4 °F) |
40,000 h |
4.724 in (120 mm) |
1 in (25.4 mm) |
5100 rpm |
22.86 mmH₂O (224.18 pa) |
260 g |
24 V |
4.724 in (120 mm) |
20.16 W |
840 mA |
70 °C (158 °F) |
|||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
27.1 cfm (46.043 m³/h) |
58.5 dB |
CE; CUL; UL |
-10 °C (14 °F) |
70,000 h |
1.575 in (40 mm) |
1.102 in (28 mm) |
18500 rpm |
Ball |
Approvals: VDE |
53.6 mmH₂O (525.636 pa) |
47 g |
12 V |
1.575 in (40 mm) |
9.72 W |
810 mA |
70 °C (158 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
113.11 cfm (192.175 m³/h) |
49.5 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
4.724 in (120 mm) |
1 in (25.4 mm) |
3400 rpm |
Ball |
Approvals: VDE |
10.92 mmH₂O (107.089 pa) |
198 g |
12 V |
4.724 in (120 mm) |
9.6 W |
800 mA |
60 °C (140 °F) |
||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
13.45 cfm (22.852 m³/h) |
32 dB |
CE; CSA; UL |
-10 °C (14 °F) |
70,000 h |
2.362 in (60 mm) |
0.591 in (15 mm) |
3500 rpm |
Ball |
Approvals: VDE |
3.01 mmH₂O (29.518 pa) |
44 g |
24 V |
2.362 in (60 mm) |
2.4 W |
100 mA |
70 °C (158 °F) |
|||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
3.602 cfm (6.12 m³/h) |
41 dB |
CE; CUL; UL |
-10 °C (14 °F) |
3,600 h |
0.406 in (10.3 mm) |
1.772 in (45 mm) |
6100 rpm |
Ball |
Approvals: VDE |
15.2 mmH₂O (149.061 pa) |
18.1 g |
12 V |
1.772 in (45 mm) |
3.12 W |
260 mA |
70 °C (158 °F) |
|||
|
Ebm-papst Mulfingen & Kg |
DC Fan |
Glass Filled Polyamide |
Axial |
294.28 cfm (499.985 m³/h) |
76 dB |
-20 °C (-4 °F) |
25,000 h |
4.685 in (119 mm) |
1.496 in (38 mm) |
9500 rpm |
Ball |
425 g |
24 V |
4.685 in (119 mm) |
90 W |
3.75 A |
75 °C (167 °F) |
|||||||
|
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
20.56 cfm (34.932 m³/h) |
56 dB |
CE; CUL; UL |
-25 °C (-13 °F) |
70,000 h |
0.787 in (20 mm) |
1.575 in (40 mm) |
15600 rpm |
Ball |
Approvals: TUV |
35.16 mmH₂O (344.802 pa) |
25 g |
12 V |
1.575 in (40 mm) |
6.24 W |
520 mA |
70 °C (158 °F) |
|||
|
Delta Electronics |
DC Fan |
Plastic |
Axial |
1.45 cfm (2.464 m³/h) |
34 dB |
CE; CUL; UL |
-10 °C (14 °F) |
30,000 h |
0.394 in (10 mm) |
1.181 in (30 mm) |
7500 rpm |
Ball |
Approvals: TUV |
7.24 mmH₂O (71 pa) |
10 g |
12 V |
1.181 in (30 mm) |
1.32 W |
200 mA |
70 °C (158 °F) |
||||
|
|
Sanyo Denki America |
DC Fan |
Plastic |
Axial |
224 cfm (380.578 m³/h) |
64 dB |
CSA; EN |
-20 °C (-4 °F) |
40,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
6400 rpm |
Approvals: UL |
36.83 mmH₂O (361.179 pa) |
360 g |
24 V |
4.724 in (120 mm) |
36 W |
1.5 A |
70 °C (158 °F) |
||||
|
Sanyo Denki America |
DC Fan |
Plastic |
Axial |
54.3 cfm (92.256 m³/h) |
43 dB |
CUL; TUV |
-20 °C (-4 °F) |
180,000 h |
3.15 in (80 mm) |
0.992 in (25.2 mm) |
5500 rpm |
Approvals: UL |
9.906 mmH₂O (97.145 pa) |
150 g |
12 V |
3.15 in (80 mm) |
3.6 W |
300 mA |
70 °C (158 °F) |
|||||
|
|
Sanyo Denki America |
DC Fan |
Plastic |
Axial |
18.7 cfm (31.772 m³/h) |
28 dB |
CSA; TUV |
-20 °C (-4 °F) |
60,000 h |
2.362 in (60 mm) |
0.984 in (25 mm) |
3800 rpm |
Ball |
Approvals: UL |
4.0894 mmH₂O (40.103 pa) |
90 g |
24 V |
2.362 in (60 mm) |
1.44 W |
60 mA |
70 °C (158 °F) |
|||
|
|
Sanyo Denki America |
DC Fan |
Plastic |
Axial |
99 cfm (168.202 m³/h) |
39 dB |
CSA; TUV |
-20 °C (-4 °F) |
40,000 h |
4.724 in (120 mm) |
1.496 in (38 mm) |
2600 rpm |
Ball |
Approvals: UL |
7.1882 mmH₂O (70.492 pa) |
330 g |
12 V |
4.724 in (120 mm) |
4.56 W |
380 mA |
70 °C (158 °F) |
|||
|
Nmb Technologies |
DC Fan |
Axial |
105.94 cfm (179.993 m³/h) |
59.5 dB |
80,000 h |
3.15 in (80 mm) |
1.496 in (38 mm) |
7500 rpm |
Ball |
36.322 mmH₂O (356.197 pa) |
240 g |
12 V |
3.15 in (80 mm) |
21 W |
1.75 A |
|||||||||
|
|
Mechatronics |
DC Fan |
PBT |
Axial |
46 cfm (78.154 m³/h) |
35 dB |
UL |
3.15 in (80 mm) |
0.984 in (25 mm) |
3600 rpm |
Ball |
5.25 mmH₂O (51.485 pa) |
82 g |
12 V |
3.15 in (80 mm) |
240 mA |
||||||||
|
|
Nidec Copal Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
3.9 cfm (6.626 m³/h) |
12 dB |
UL |
-10 °C (14 °F) |
1.575 in (40 mm) |
0.394 in (10 mm) |
4600 rpm |
Sleeve |
0.04 mmH₂O (0.392 pa) |
14 g |
5 V |
1.575 in (40 mm) |
400 mW |
80 mA |
60 °C (140 °F) |
|||||
|
Ebm-papst Mulfingen & Kg |
DC Fan |
Glass Filled Polyamide |
Axial |
100.1 cfm (170.071 m³/h) |
45 dB |
UL |
-20 °C (-4 °F) |
4.685 in (119 mm) |
1.26 in (32 mm) |
2800 rpm |
Ball |
IP68 |
260 g |
12 V |
4.685 in (119 mm) |
5 W |
65 °C (149 °F) |
|||||||
|
Ebm-papst Mulfingen & Kg |
DC Fan |
Glass Filled Polyamide |
Axial |
100.1 cfm (170.071 m³/h) |
45 dB |
UL |
-20 °C (-4 °F) |
4.685 in (119 mm) |
1.26 in (32 mm) |
2800 rpm |
Ball |
IP68 |
260 g |
24 V |
4.685 in (119 mm) |
5 W |
70 °C (158 °F) |
|||||||
|
Ebm-papst Mulfingen & Kg |
DC Fan |
Plastic |
Axial |
17.66 cfm (30.005 m³/h) |
12 dB |
CCC; CE |
-20 °C (-4 °F) |
80,000 h |
3.15 in (80 mm) |
1 in (25.4 mm) |
1500 rpm |
Sleeve |
Approvals: CSA; EAC; UL; VDA |
1.02 mmH₂O (10.003 pa) |
95 g |
24 V |
3.15 in (80 mm) |
700 mW |
30 mA |
70 °C (158 °F) |
||||
|
|
Mechatronics |
AC Fan |
Polybutylene Terephthalate |
Axial |
106 cfm (180.095 m³/h) |
46 dB |
CUL; TUV |
-40 °C (-40 °F) |
4.724 in (120 mm) |
1.496 in (38 mm) |
3100 rpm |
Ball |
Approvals: UL |
8.7 mmH₂O (85.318 pa) |
530 g |
115 V |
4.724 in (120 mm) |
12 W |
160 mA |
70 °C (158 °F) |
||||
|
Knight Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
40 cfm (67.96 m³/h) |
33 dB |
CE; CUL; UL |
-15 °C (5 °F) |
60,000 h |
0.984 in (25 mm) |
3.15 in (80 mm) |
3300 rpm |
Ball |
Approvals: TUV; UKCA |
5.84 mmH₂O (57.271 pa) |
86.18 g |
12 V |
3.15 in (80 mm) |
2.2 W |
180 mA |
65 °C (149 °F) |
||||
|
Knight Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
40 cfm (67.96 m³/h) |
33 dB |
CE; CUL; UL |
-20 °C (-4 °F) |
60,000 h |
0.984 in (25 mm) |
3.15 in (80 mm) |
3300 rpm |
Ball |
Approvals: TUV; UKCA |
5.84 mmH₂O (57.271 pa) |
86.18 g |
12 V |
3.15 in (80 mm) |
2.2 W |
180 mA |
65 °C (149 °F) |
||||
|
Knight Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
22 cfm (37.378 m³/h) |
21 dB |
CE; CUL; UL |
-15 °C (5 °F) |
60,000 h |
0.984 in (25 mm) |
3.15 in (80 mm) |
2000 rpm |
Ball |
Approvals: TUV; UKCA |
2.53 mmH₂O (24.811 pa) |
86.18 g |
24 V |
3.15 in (80 mm) |
2 W |
80 mA |
65 °C (149 °F) |
||||
|
Knight Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
93.8 cfm (159.367 m³/h) |
53 dB |
CE; CUL; UL |
-20 °C (-4 °F) |
70,000 h |
1.004 in (25.5 mm) |
3.622 in (92 mm) |
5000 rpm |
Ball |
Approvals: TUV; UKCA |
11.93 mmH₂O (116.993 pa) |
81.64 g |
48 V |
3.622 in (92 mm) |
8.1 W |
150 mA |
65 °C (149 °F) |
||||
|
Knight Electronics |
DC Fan |
Polybutylene Terephthalate |
Axial |
83.1 cfm (141.188 m³/h) |
53 dB |
CE; CUL; UL |
-20 °C (-4 °F) |
70,000 h |
1.26 in (32 mm) |
3.15 in (80 mm) |
6400 rpm |
Ball |
Approvals: TUV; UL |
20.06 mmH₂O (196.721 pa) |
117.93 g |
12 V |
3.15 in (80 mm) |
8.4 W |
700 mA |
65 °C (149 °F) |
Industrial fans and blowers are mechanical devices that are used to move air or gas in industrial and commercial settings. They are commonly used for ventilation, cooling, drying, and conveying in applications such as manufacturing, mining, and HVAC systems.
Industrial fans and blowers come in a variety of types, including axial fans, centrifugal fans, and radial fans. Axial fans are the most common type and are used for applications that require a large volume of air to be moved at low pressure. Centrifugal fans are used for applications that require higher pressures, such as in HVAC systems. Radial fans are used for applications that require high flow rates and high pressures, such as in mining operations.
Industrial fans and blowers are powered by electric motors, diesel engines, or steam turbines. They can also be fitted with variable speed drives to control the airflow and pressure output.
Industrial fans and blowers offer several advantages over other types of air handling equipment. They are highly efficient and can move large volumes of air or gas over long distances. They are also highly reliable and can operate continuously for extended periods of time.
However, industrial fans and blowers also have some limitations, such as high noise levels and susceptibility to damage from external factors such as dirt, dust, and debris.